Buy a struggling, yet large, web business for 5k. Use 3k to do it up and get it turning a profit. The rest of the money invest into buying 10 lll.com domains, or one very nice domain, this is your security. lll.coms will only go up in value, and will instantly sell, so if you have the cash tied up into your business, then it isnt floating around. Then when you need it, just sell off the domains as needed. Keep the e-business, and make your total 10k investment on it twice. so once it turns 20k, you invest 5k into expandinig again. Expect, in 5ish years, when you have sold all investments, and have all the profits from the e-business, dont spend them, you should have approx. 70k after ebusiness sale.