Basically just post a medium-sized post explaining your link building strategy over the past few years and what helped you the most! (John doesn't have a Link Development sub-category like DP

)
Anyway please read through the thread and don't duplicate! I'll rep people with good ideas too
Here is mine:
Directories:
http://www.web-directories.ws/
Co-Op:
http://www.receivelinks.com/
http://www.digitalpoint.com/tool/ad-network
http://www.link-vault.com/
Forum Posting (not Spamming) to get sites indexed:
http://www.v7n.com/forums
http://www.wickedfire.com/
http://forums.digitalpoint.com/
http://www.pimpmyblog.com/
Forums with a "Latest Blog" Option to get Blog Posts indexed:
http://www.pimpmyblog.com/ (Owned by the one and only Shoemoney!)
http://www.v7n.com/forums
http://forums.digitalpoint.com/
Organic Linking by having a unique site and getting people talking about it!
Paid Ads (which are indexed by Google):
http://www.textlinkads.com/
All these are some easy ways to get good one way links! You never know when a forum page becomes a PR4 and usually posting here and there can get your member page a PR4 eventually too! (vBulletin has it's "View Public Profile" Link in the HTML Code so Google indexes it)!