The Mack Web Application Framework now has a comprehensive, and ever growing, User Guide to help developer's make use of Mack's rich feature set. The User Guide can be found at: http://www.mackery.com/
RubyFlow is a community driven Ruby links site. Items are not added automatically, but chosen and summarized by the community, resulting in a higher quality of links than social bookmarking sites. You can start your own RubyFlow site for your own community with this code.
How?
Enjoy the links, comment or make a post of your own. You don't need to be signed in! Only posts made by users with a good track record make it into the feed though, so no spam.