http://eco-comics.blogspot.com/ <- For economics - not a sequence, per se, but covering a broad range of material in an entertaining and (AFAIK) novel way. http://eco-comics.blogspot.com/2009/06/justice-league-and-comparative.html <- Probably the best post there
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.