[WHAT are the BEST Web 2.0 platforms ( blogs ) THIS DAYS!

Guys! Need something like 20-30 blogs for my zennoposter
Something that really work
Liek wordpress
tumbler and so on
not interested in low web 2.0 platforms that do nothing.
Something that you really use and what really works only!
For example you have amazone niches websites with new pages every day or whatever.
And you need to make 20-30 really good looking posts for each page.
So what choice it will be ?
Lets gather
top 20-30 together.