How to market multiple sites

I am the owner of about 10 sites and they are all different. Three are proxies, two are directories, one forum, and a couple others. I am trying to find people are in the same situation as me and how they deal with it.

What do you do to to promote your websites when you have multiple?

 

I place ads in other webmasters' sites.

Advertise, in another word.

 

for all your websites?

 

I make a plan for each site I market.

 

do u want to let me know what that is

 

join in a social networking site that is related to the theme of your one website. establish relationship with your virtual friends. then invite them to visit and register in your site.

 

Yes, for all of my sites.

I want to make money off of them, so....