[pfarrell]

For me:

Slashdot, though the peak days were behind it

Digg, which would be fun for a while still

Blogs like the old new thing, and Joel Spolsky

Del.icio.us and Stumbleupon and (I’ll admit it) Fark

[wyclif]

I had a del.icio.us account since the beginning until it got sold, but it wasn't really a forum or hangout. It was a link aggregator.

I still have a Slashdot account, but I can't remember the last time I logged in there. Peak Slashdot was really 1998 for me, when I was working in my first IT job and would check it as much as 5x a day. By 2011, it had declined greatly in readership because of the combined effects of Twitter, Reddit, and HN.

[mdolon]

Ah yes, Digg! Definitely spent a lot of time on there hunting for tech news.