If you have bought a bunch of domain names you aren’t using, try slapping a few banners on them and link to the page from your blog. Once it’s made you never have to touch it again, check out iCamSeeker.com or ecofriendlysex.com those are what I choose to call holding domains.
They are for sale, so until they are sold or if I find some use for them down the road – the should just generate some cash on the side.
Hey one more tip, you can also slap a bunch of descriptive links on the page and you might get lucky that Google picks it up 
