a public news site (feed reader/aggregator) for Ruby. The planet subscriptions (feed lists) are split into seven sections (sub planets), that is, 1) Blog Postings, Articles, etc. 2) Official Ruby, JRuby, Rubinius, Rubygems, Rails News 3) Events, Workshops, Conferences, etc. 4) Jekyll 5) Rubygems 6) Podcasts 7) Meta - Updates about Planet Ruby and Planet Pluto ;-)
The planet feed list is a plain text file on GitHub, that is, ruby.ini. You're welcome to add new feeds or suggest new (sub) planet sites. The Planet Ruby ships with six design templates/styles, that is, Standard, Cards, News, Hacker, Digest and Top.
When I saw those '1's in the 'Hacker' style I hoped for an actual collaborative filtering but this seems to be merely a feed aggregator. That I don't need - I'm familiar with RSS and its readers.
On the other hand collaborative filtering and comments would add some actual value. More value for sure than the ability to change styles (all equally ugly BTW).
The advantage of feed aggregators is that they allow you to get content from feeds added later, without having to manually find them and subscribe. A mechanism for dynamic OPML - a "feed of feeds" - would be better, but as far as I know there's no such format.
The value of dynamic OPML on the other hand is strictly negative, especially if it was recursive (you'd subscribe to a dynamic feed that could subscribe you to other dynamic feeds etc.) - a perfect storm of data.
