1. Go to offer sites and complete (go green) on offers that will result in cash being put in your PayPal account.
2. Get some PLR articles from the web, bundle the ones in the same hot niche into ebooks, sell on DP or trading type sites.
3. Find a low cost source for a service or product people are paying 2x or 3x more for otherwise, then advertise you are providing the same thing for slightly under 2 or 3x. Profit as a middleman from the spread between your just below retail price and the 'wholesale' price.
4. Sell what sells---mainly meaning, S 'n M (sex, money), with the 'n standing for 'new craze' (ipod type stuff). Sex related items always move, make your ethical decisions about specifically going forward with e-whoring or marketing to porn and swinger sites, vs. more 'respectable' areas (like sexual performance enhancing products, personals, lingerie). Offering ways to help people find a job or more ways to make cash is also evergreen.
5. Find what you can recycle or reposition to a higher use, to profit from the hidden value. Take other people's throw out material and resell it, turn lemon into lemonade. Find out about services that are usually a scam, and provide a legit version that will co-opt the customers who might otherwise be defrauded. Hope this helps.