Your Favorite Tools & Resources for Internet Marketing

Many of us know of great resources alot of other members don't, so I thought I'd start a thread to get us sharing our sites & tools. So what tools and websites do you recommend for internet marketing/traffic generation/ etc.

Here's a few I know about-

Twiends.com Increase Twitter following, Facebook Fans, and YouTube Views
ViewTubeTrain.com Increase YouTube Views
ManageFlitter.com Unfollow everyone who's not following you back on Twitter
PRLog.org Free press release distribution
FollowList.com Directory of 'do-follow' blogs (can use for backlinking)
Fiverr.com Find some valuable services for only $5
KeywordDiscovery.com/search(dot)html (sorry can't post URL's yet. But don't forget the .html) You'll find long-tail keyword suggestions here for free
Prezi.com Make some visually appealing presentations (record with screen capture software)
MailChimp.com Free email marketing service (up to 2,000 subscribers)
KickStarter.com Need funding? If people love your idea they'll help
CBTrends.com Clickbank trends (find new products, see how well products are converting, etc.
Lulu.com Self publish physical products for free (on demand service)

Thats all I can think of right now. I used to have a ton of bookmarks in Firefox but my hard drive got wiped Hope these help! Now share yours