I'm on the hunt for a new RSS aggregator. Google Reader is a trusty ole friend, but recently has given me cause to break up for good. There are more fish in the Internet sea than just Google and the top ten readers, but I've got an idea of where to start. The first step is to figure out what website has a complete listing of RSS aggies. http://www.addthis.com/bookmark.php
has one of the biggest lists. http://en.wikipedia.org/wiki/Aggregator
has a ton listed as well.
My next step is to make a list of wants and do-not-wants. I like most of the features of Google Reader, so it will be the de facto gold standard. I want people to be able to read my comments on articles easier. This means a more blog-like display of articles I've faved, shared, and added notes to.
-Articles and comments will be searchable by user tags and keywords.
-Articles will be sortable by date or name, especially by oldest first (Google Reader limits you to the last 30 days).
-There should be little numbers at the bottom of every page for navigation by a range of articles, as well as forward/back links (Google Reader forces readers to click "see more Buzz" every single time. With long load times and a specific article in mind this gets annoying quickly).
-A popularity meter. This could be page hits, reader ratings, number of times linked to, etc.
-A link back to a main profile in author view (Google buries the link somewhere in Reader settings).
-It should be able to display comments only, and to "see all posts by user," to seperate article content from user comments.
-It would be nice if it had a way to import all posts I've written in Google Reader, but not necessary (I've written like 300 comments over 5 months).
-Integration with Google Buzz would still be nice.
-The aggregator should have a big user base, so that a lot of people will read, rate, and respond to my comments.
With my goals in mind, I'll start with the aggs used most often. This usually means Google Reader, Digg, StumbleUpon, Reddit, and Delicious.