With 5000 domains you could just set up what used to be called "MFA" sites, pick a niche, keyword them all up the same way and sit back and wait for the income.
Yes, it will still work, despite Panda, Turtle, Dirty Filthy Fucking Rat, Abombininal Snowman or whatever other "updates" The Big G comes up with. There ARE other search engines, you know.
You will get hits and you will earn passivlely.
Try it.
You'll like it!
10,000 domains= $9999.00 if you buy .infos.
Three bucks a month from each domain = $30K per month.
I do this.
Don't bother renewing them, just get new ones.
Let The Big G and the other search engines pay for your lifestyle.
I am shooting for 25K domains.
Everyone who reads this post may now send me $500 each for some of the best advice they ever got.