43things is one of the busiest Web 2.0 enabled social networking sites with high ranking pages in the search engines for a variety of keywords, tags and niche market terms.

Home page: 43things.com

Alexa Rank 03/07: 2,122
Alexa Rank 10/07: 3,630
Alexa Rank today: alexa

# of Members 03/07: 700,000
# of Members 05/07: 1,007,433

Strategy: F, P, C
Nofollow: Deployed on your goal posts and profile page.

Synopsis: Community sharing personal goals. Variety of niche topics. Broad range. Drill down in research before proceeding.

Notes: Funded by Amazon, monetized by Adsense.

Special: You can set up your 43things account to automatically post your ‘things’ to your own blog. I don’t suggest doing this as (a) search engines will likely find your content on 43things first and then consider your blog to be a secondary source of all things ‘you’, and (b) you have to give 43things your blog userid and password for it to work. (Never a good idea.)