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 and Google Maps.
The free storage sizes are good for sharing photos on the web, but if you prefer to upload your images at a larger size for better quality (archival or print), you can buy more storage at any time. Learn more
If you’ve signed up for Google+
Free storage limits
Photos up to 2048 x 2048 pixels and videos up to 15 minutes won’t count towards your free storage.
Thats pretty neat, now about that invite…