I visit the My Les Paul forum. A guitar forum. Also has a good off topic section and so many users, that you're never struggling for a conversation. I also visit the Gibson forum, but I'm getting fed up with that as there's a kid on there who hijacks everyone's threads, insults people and posts about his obsession with hoarding old tv's. Can't believe he's not been banned. He's started flame wars that have seen a few long time members perma banned, but the mods seem to let him off as he's only 13. One user posted a really touching thread about how he can no longer play the guitar after over 50 years of picking due to arthritis, and this kid comes in and says "Cool, can I have your 1961 stratocaster?".
When someone pointed out to him how insensitive he had been, he said "But I always wanted a vintage strat"... There's another forum I visit every now and then for expatriates. Just go on there every now and then for advice about Visas. Started using it before I went to Canada and still check every now and then, but I wouldn't stick around there as a few of the moderators (yes, the moderators) are bigots.