Buffer Sites

What are you guys using for buffer sites?

If you are getting actual server space with domains....what's the cheapest out there to keep costs down?

Use free web 2.0 sites like squidoo, blogger and sites like that...

Here is good list:

Thanks for that. Will a bought domain rank you better or the same as those sites? Does it have any effect on authority?

I'm wondering if you purchased 5 domians, all targeting a specific keyword for your money site, build 5 high quality sites, with good backlinks and content, let the sites rank for 6 months, then redirect them to your money site and blast the hell out of them with scrapebox.

Would this give good results? Anyone ever tried anything like this?