"Picasa Web Albums offers 1 GB of free storage for photos and videos. However, files under certain size limits don't count towards this free storage limit. This applies to uploads for other Google product that store photos and videos in Picasa Web Albums, including Blogger, Google+ and Google Maps." - Amit Patel from Bookmarklet

If you've signed up for Google+: images up to 2048x2048 don't count towards your quota. - Amit Patel

If you haven't signed up for Google+: images up to 800x800 don't count towards your quota. - Amit Patel

Neither limit gives you pictures worth shit. :-) - Piaw Na

Oh? - Amit Patel

I remember talking to Mike Herf (original author of Picasa -- @herf) before PicasaWeb shipped when he was still at Google and I was visiting the Santa Monica office. I was lamenting the small picture sizes they were planning on. He then showed me a couple of 8x10s -- one at a high megapixel count and one that was substantially lower. The end result is that appropriately sharped clean pixels downsampled from a quality image are pretty much indistinguishable from full sized images when printed at 8x10. And very very few people print larger than that. So, while I wouldn't use Picasa for archiving (a whole other topic that herf is passionate about) I don't think that 2k is that unreasonable. - Joe Beda

I don't print at all so 2k is plenty. However, I'm not on Google+. I found it interesting that they're imposing a strategy tax here. I imagine they'll impose it on lots of other products over time, either with carrots or with sticks. Some people will end up signing up for Google+ and others will switch to competitors. For now I'll use the paid versions of both Flickr and Picasaweb but my gut says that Flickr will be around longer. - Amit Patel