del.icio.us, I prefer the del.icio.us social
bookmarking service the most. I love being able to easily subscribe to
all people blogging to a certain category. It also seems a lot more
active. Sure, full-text search would probably have been nice, but
del.icio.us coupled with Google has been enough for me. The lower data
requirements probably mean that del.icio.us will be around for longer.
It also helps that del.icio.us works perfectly with w3m, the web
browser I use within Emacs. URLs are short and easy to remember, too.
I love my http://del.icio.us/inbox/sachac!