ALL LINKS MATTER!
You want to get links of EVERY type.. forums, blogs, wikis, parahosts, articles, profiles directories, emails, groups, social networks, real time updaters (twitter)... it doesn't matter what the tag says, you NEED all those links and every link you can get if you want to have a hope in getting SERPs.
Also keep your link building consistent. Don't do a 1000 link blast one day and sit around, you need to have a link velocity of incoming that is within a consistent range, as soon as you stop, off to the sandbox you go. Start with anything from 10 links a day, to 200. Whatever you are capable of maintaining. It doesn't have to be EVERY day either, it just has to be consistent. If you keep doing a link build say once a week, then that works too. Google isn't going to pickup on all your links right away anyways.