In Google's online photo album updates:
A search for public albums of all users has been added (not just those in Favorites). You can search by tags, captions to photos, album names.
The space for free storage of photos and videos has increased to
1GB and will continue to grow (following the example of GMail).
Added the ability to copy a link to an album or photo in a convenient form (with the ability to select the size of the thumbnail).
Source:
Official Google Blog