What to do with 20 Blogs created 2008?

Can some one advice me what to do with 20 or more blogs made in 2008 how can i monitise it.i use it before for cpa paydotcom ect i didnt make money from it since i sux at seo..good thing i save all the username and password from a note pad..Blogs are mostly work from home. movies, sports for cpa.thanks

Try to convert it into a private blog network if the PR is high, that may work good.