Photo

Adobe Photoshop Express

http://www.photoshop.com/express

- Simple editing of photos, functions similiar to Google's Picasa

- Sharing with friends, 2GB storage

- Import picture from flickr

Browse Gallery

Editing

Flickr

Rating : 5/10

http://www.flickr.com

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- The largest photo sharing society

- Unlimited storage ( but you can upload at most 200 photos, if no. of photos is more than that, the oldest photo will disappear from your page, so you can't find them in your page )  

- Upload 100 MB of photos per month / 5MB per photo

- Apply 3 sets ( similiar to folders ) at most

- Generate different size of the photos, including original one ( no compression applied )

Zooomr

Rating: 6.5/10

http://zooomr.com

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- Unlimited storage ( no limit for numbers of photos also )

- Duplicate of Flickr from the design and functions

- GeoTagging, tag your photos in Google Maps