I use squidoo lenses, Twitter and wordpress
Every lens has a different subject.
Every blogs are linked with eachother.
Since December 2009 i started with twitter
With some followers it is easy to promote products and your websites and blogs
Check out my seo ranking (top 5 on goole)
Type in on your address bar:
"absolutely the best twitter software"
And discover the high SEO ranking
Any more quistions or suggestions feel free to leave a message.
Have a nice day,