Good article. I guess you've got to work smart to get noticed on Flickr. - Adam Christie

Very good advice, Thomas. A comment on no. 6 ("Groups"): I remember Flickr staff mentioning that not only photos that are in too many groups (more than 10-15, as a rule of thumb) get penalties for their Explore rating. Allegedly, this is also true for photos that are in the *wrong* groups, specifically the ubiquitous "post 1, comment x" groups. So not all photo critique groups might be good when you want to get your pictures into Explore. - Ole Begemann

Ole, I hadn't heard that certain groups penalized photos but have seen Flickr staff in the past mention that posting your photo to too many groups will reduce it's visibility with their algorithm. - Thomas Hawk

Re: no. 5 ("Explore"): more criteria that seem to influence whether a photo makes it to Explore: the presence of EXIF data, geotags, title, description has a positive influence; faves and comments from people who are not among your contacts seem to count more than from contacts; faves and comments from popular photographers count more than those from nobodys; a photo that gets 2 or 3 faves within minutes after uploading is more likely to make Explore than one that gets faved 15 times within 24 hours. - Ole Begemann

Thomas, I'll try to find a reference for this. - Ole Begemann

Good point on EXIF data Ole, yes, photos in Explore are required to have EXIF data. My own guess as to why this is is that if a photo has EXIF data it is more likely to be your own photo vs. something you simply ripped from the web. Not foolproof of course but I'd guess that this policy is in part due to a desire to increase the authenticity of the photos promoted on Explore. - Thomas Hawk

If you look at the photos in Explore, the only "Leave a comment" groups that I see with any regularity are TWTME and 1-2-3 groups... what makes them special I'm not sure, other than they're amongst the largest groups in general. But you see very few of those award groups or "leave x comments" groups in the photos in Explore, so I suspect that Flickr must be penalizing them. - Eric P

Thomas, that's a great refresher on the original article. Some great tips. - Tom Quinn

And Thomas, throwing reciprocation in as a "bonus"? It should have been #1 or #2. The vast, vast, vast majority of comments and faves that I receive are from people whose stream I previously visited. The only real exception to that is when a photo is high in Explore, which results in a torrent of views/comments/faves from strangers. - Eric P

Yep Eric. Reciprocation is very high. Bonus tip might not be the best place for it. It's very important. Faving back when people fave your work, commenting back. Adding people back as mutual contacts, etc. All encourage activity on your photostream. - Thomas Hawk

Eric, participation groups don't penalize your photo from Explore best I can tell. This photo http://www.flickr.com/photos... from a few weeks ago was in the Deleteme Uncensored critique group and was #3 on Explore as well. - Thomas Hawk

In fact just searching flickr for the save10 tag from the DMU critique group along with "explore" brings up a number of photos: http://www.flickr.com/search... - Thomas Hawk

Good post, *IF* getting attention is important to you, as opposed to using it as a vehicle to just share photos with people - Eric Rice

After I read your original article on Flickr popularity a while back, I began reciprocating every comment received. That worked very well. - Tom Harrison

Eric, true. Some people have no interest in their photos receiving attention. I do think that the majority of people posting on Flickr though do appreciate when their photos receive some attention. Lots of people do not though. I have friends that only publish private photos that their friends can see and opt out of every public aspect of Flickr. I think these people though are the exception rather than the norm and think that Caterina's quote is pretty typical of the most active users on the site. - Thomas Hawk

Thanks for digging my article Aaron! :) http://digg.com/arts_cu... - Thomas Hawk

Alright, I found something. Flickr staff member acknowledged almost 2 years ago that "groups that force people to comment/fave on certain photos with no choice" do in fact hurt your Explore chances. Also, "weight of comments and favorites from contacts is quite low in interestingness calculation." (http://www.flickr.com/groups...). A very old post and the algorithm has changed since then but we can probably say that the gist of it is still true. - Ole Begemann

interesting Ole. I hadn't seen that. I think it would be difficult for Flickr to manually track every group that encourages tags and comments as participation. Per the links above though, photos in DMU have definitely made it into Explore anyways. - Thomas Hawk

Yeah, I have no idea how they maintain a list of the "bad" groups. Further below, SilentObserver mentions his business is writing algorithms to filter them out automatically, though. - Ole Begemann

Here's another good summary of nearly everything the community knows about the Explore algorithm: http://www.flickr.com/groups... - Ole Begemann

Here is an example of tagging. I did not know this woman was a celebrity until after got this shot. It appears on the first page of the image search engines and it has received over 12,000 views. http://flickr.com/photos... - Russellreno

So far I got 3 (!) photos into explore. Their common factor? They all were faved by you (TH) soon after I posted theim. - Guillaume Lemoine

Flickr used to say "who" faves your shots was a part of the Explore algorithm. It wouldn't surprise me if the algorithm weights faves by different people from the Flickr community differently. For instance, Pro accounts where people actually have paid for the service might be weighted higher than non-Pro accounts. More active users might carry more weight with their faves then less active users. Just speculating on this part. - Thomas Hawk

Thomas - I don't think that participation in all groups gets a penalty, just that there are some groups that are penalized as far as Explore is concerned. I simply don't see Explore photos in "Post 1, Comment X" groups - so either there's no explore-worthy photos in those groups (not likely IMHO), or Flickr is penalizing the photos in those groups. - Eric P

such a great post Thomas, thanks for writing it - Dobromir Hadzhiev

As a note to certain groups penalizing your photos...I had a photo (http://www.flickr.com/photos...) that went to explore spot 150 or so. After, I added it to a few groups to see if I could bump it higher. It had the opposite affect and immediately dropped off. I can't say which group exactly did it or if it was the number of groups I submitted to, but adding to groups definitely does come with some sort of penalty. - Justin Korn

If you use FeedBurner, you can splice your Flickr photos into your blog feed. I have it splice my last two photos and I find those have at least 5x the number of views as the ones that aren't in my spliced feed. - Mike Hussein Cohen

Awesome post Thomas. I signed up for Flickr a couple of years ago, but only started using it more regularly after the purchase of a digital SLR camera - so this post is particularly relevant to me. I am still patiently waiting for that first comment/favourite on one of my photos to truly experience the emotions as described by Caterina Fake. - Jeff Smith

Thanks for this post, Thomas. Great tips! - Eric Johnson

Great article Thomas... I was also wondering about what my friend calls 'Shooting for the 75'. That is, a great majority of people only ever see a 75 x 75px thumbnail of your photo. When he processes, he always does a square crop to test how it looks in the frame. Would you like to see proportional thumbnails as an option? - Johnny Worthington

I actually really like the square thumbnails. Heck I really like the square crop period. I think I'm cropping more and more of my photos 4x4 these days. Maybe it's just that I've always loved medium format photography so much, not sure why I'm so drawn to the square crop right now though. I much prefer Flickr's square thumbnails actually. Still would love to see larger sizes on FF like SmugMug's thumbnails. - Thomas Hawk

you're right though. Frequently it's the thumbnail that draws people into a photo. A good looking thumbnail is more likely to be selected by viewers for clicking through to full size viewing, commenting, faving, etc. - Thomas Hawk

One of my very first Flickr experiences was someone in a critique group cutting me down for a square crop. It was a rose in a perfect spiral petal pattern, could only be cropped square as far as I was concerned. LOL...I didn't change it either. - Karoli

Haha, that's funny Karoli. so much of the criticism in critique groups on Flickr is so lame. You should have seen the deleteme critique group ravage a Henry Cartier Bresson photograph who is probably considered by most photo historians as the greatest photographer who ever lived. Read some of these comments on this photo for a laugh: http://www.flickr.com/photos... - Thomas Hawk

I used to work to get photos into explore. I think I probably take better pictures now, but I don't have the time at the moment to put in the work. Lots of community building and commenting went into the mix. I confess, there's a real rush to hitting the front page. I had three in the top 10, and it was a lot of fun. - Karoli

I have been doing a lot of panoramic shots over the past year and I have started to play around with vertical cropping. Taking a portrait photo and cropping a really tight vertical crop: http://www.flickr.com/photos... It's all about how the picture looks to you in the end. Square, circle or hexagon, it's about the sensory reaction :) (and now I'm going to square crop for this week just to try it out, thanks guys) - Johnny Worthington

Thomas, those comments are a hoot! I met some nice people in some of the critique groups, but it didn't take me long to know the critiques weren't helping. I do love Flickr's community...even if I haven't spent a lot of time in it lately. - Karoli

yeah, the attention from Explore can be fun. But I'm pretty unimpressed with a lot of the photos there. I think Flickr could do a much better job with that algorithm. I do find filtering explore just by my contacts though produces more consistently interesting photographs for me. I use this script to do just that: http://www.drewmyersphoto.net/flickr_... - Thomas Hawk

Agree on the photo quality on Explore. Seems like a lot of the same sort of gimmicky stuff lands there. Looking forward to trying the script. - Karoli

Thanks for the article, that opened my eyes up a lot - Alex Carpenter

Hey Karoli, here's you and your daughter by the way. I uploaded this to Zooomr a while back when I was taking a break from Flickr but uploaded it tonight on Flickr. Great fun on that photowalk. http://www.flickr.com/photos... - Thomas Hawk

Hey, cool! Thanks for the pointer. It was a great photowalk, would love to do another sometime soon! - Karoli

Here is one more way to get attention: Comment on this post with a link to one of your photos. I received a hit today from the comment about. http://www.flickr.com/photos... - Russellreno

Good stuff. Worked for me: http://www.flickr.com/photos... - Demetri Mouratis