I've actually never heard of formspring. I guess the differentiator between formspring and twitter is that twitter is more mainstream. It's popular with celebri

I've actually never heard of formspring. I guess the differentiator between formspring and twitter is that twitter is more mainstream. It's popular with celebrities, kids, etc. Formspring seems like a very specific niche market. Megaupload was killed due to piracy issues. A bit different.