I'm everywhere Ash
I like nice domains for my mini sites so if I ever sell them they will all be worth £1000 + at some point, well that's the plan.
Paullas I think the best earning
mini sites have a hook, ie a single page site with a calculator or tool on it that's free for people to use like
Tattoo Fonts That's a mini site that earned $235.42 last month and takes zero maintenance, I have not done anything to that site for many many months now but took a little effort at the start to find someone to write the script for me for free.
Scripts can be created for tools very cheaply & easily, the font site was free and only cost me the price of a domain name. Basic information mini sites make less but add to the pot.
Weapons was put up the other day with zero type in traffic and made $1.22 yesterday from 7 search engine visitors because I have a unique essay/text on that one page mini site, that will improve in time.