Upload Limits Changed, Gift Cards From Flickr
This holiday season Flickr makes it easy for you to gift pro accounts to your friend and family, irrespective of whether they have a Flickr Account or not. Just buy a special activation code and they will give you a special Gift Certificate (which can be printed out). You can send this gift certificate to your friends and family or the simpler method would be to email the activation code to them.
Flickr Pro users have no more limits, they can upload unlimited number of photos. For free account users, they limit has been raised from 20MB to 100MB (5 time more!). So start clicking and sharing.
Source: FlickrBlog