bradomo saidSweden really doesn't have a gay life. It is accepting but I found it is similar to other countries. I found that there are sex clubs and bookstores only. Similar to midwest situations. Stockholm really didn't have a gay area I felt when I was there.
there's not a designated "gayborhood" but the gay scene is absolutely not confined to sex clubs (I am skeptical these even exist in Stockholm) and bookstores.
Kolingsborg (called Paradise Garage club, but the establishment itself is "kolingsborg") is a blast on fridays, usually fun on saturdays. Zipper is another gay bar/club but lots of much younger men I've found. It's on S:tEriksgatan or something if I remember correctly. Torget is a gay bar for an older crowd.
Go to the Katarinahissen (Slussen T-stop) during the day or night, The Galleria for shopping, Kulturhuset (T-Centralen t-stop) if you like the arts, Vetta Katen (Hötorget t-stop) if you like pastries/sweets, any number of churches for the architecture, Pontus (Östermalmstorg T-stop) for lunch after 1pm on weekdays, Gamla Stan, the national palace (changing of the guard on weekends at noon), and eat at Max Burger. Moderna Museet is a decent modern art museum. Skeppsholmen (an island) is cool in general though, as is Djurgården (a large park on the island Nacka).