On-line programs stating to Speed Up your computer

are they any good? Or is it just more malware or spyware?

“FinallyFast.com” is one I see advertised the most, but there are tons of others.

I was just curious if anyone was familiar with these or have actually tried to use these sites. I am personally skeptical about it. But I have friends that have asked me what I thought about it, and I told them I would stay away from it.

Your thoughts?

Thanks.