4 domains as landing sites

I have 4 domains and I would like to put something on them so they age. My domains are relevan to my main site so should buy a couple more and use them as a link wheel? They would only be one page sites so would I be better using blogger etc for my wheel?
I apppreciate new sites will have no pr or anything whereas other sites will have more authority.
Thanks

You just wanted to use useless domains as a landing page?

Sounds like he wants to just use parked pages with general content.

Yes I have 4 domains I have just bought, there is nothing on them. The domain names are all relevant to my mainsite so I want to put a holding page on to them so they can age. I was wondering as the names are relevant if I could pack them with keywords(not obviously spamming) and send a link to my main site and to each other to form a link wheel OR am I better putting adsense etc on them and forming my link wheel another way?
Hope this is a bit clearer.