I'm in the middle of making a 27 things comeback, after some time off that ended yesterday.
Rollyo was fun. I made a tennis search that searched a few different sports sites for information on Marcos Baghdatis, an animated pro tennis player from Cyprus. Speaking of tennis, I have an old LibraryThing account called Grosjean (named after the player Sebastian Grosjean) that I started a couple years ago:
When I was in library school, I cataloged the books I had to read for a young adult lit class, and it was neat to see all the members on LibraryThing who had the same books; they must have taken the same class.