Advice on what content to place on the following domains

Hello DP Members,

I have a few domains, and im trying to work out the best content to put on them,
I have previously gone down the path of generic auto blogs and lets just say they definately aren't what alot of people make them out to be, so i want to work on genuine content, relating to a good niche that would be simple enough to write about, Hope this makes sense

Anyway, the domains are;
hostblurb.com/.net <- purchased initially for a reason i cannot remember
emialcash.com <- Typo domain, seemed like a good idea at the time.
botnet.me <- initially purchased to use as a vhost for IRC, novelty wore off
atyourservice.me <- i don't even know why i purchased this domain.

Any suggestion, Detailed or direct would be greatly appreciated!

Thanks.

 

Hostblurb.com/net could make a decent name for a blog/ forum/review site related to hosting

Emialcash- park, make money and then sell it off.

atyourservice.me-you could make a directory or some kind of Yellow Pages site.

 

I think the only one worth developing would be hostblurb.com Definitely don't waste your time developing a typo.