71. Become a volunteer editor in places like DMOZ and then take bribes to list sites. Is it illegal? In many parts of the world it probably is not, and so it does happen a fair bit. But, the less said about this bribery the better..

72. Petitions: People are constantly petitioning their bosses, their politicians, the rest of the world. Some of those petitioners pay for people to join their cause. Signing up again and again and again has proven lucrative for some, particularly those who know how to proxify their IPs.

73. Email SPAM. Nobody likes it, it's illegal in some countries, ISPs get very upset, recipients get even more upset but no list of how people make money online can be complete without a mention of this. What do you sell when you spam? Have a look at what type of spam YOU are getting, it will likely give you an idea of what pays. And the stock tips that seem to "accidentally" land in your inbox. But that's about all the help I'm giving you on the subject.

Or up your SPAM game to something more sophisticated. Plenty of ideas here - it's a simply awesome read.

74. Back to email SPAM. Wherever there's a big problem there's an opportunity: Run an free email service like Hotmail etc., but with a good SPAM filtering system. High startup costs, sure, but if you get enough people signing up you could be worth a few million very quickly. Google tried this with gmail and got about 4% of the market without advertising the service at all; accounts were given by invitation only. Now they make money from all the contextual (!) ads served within emails people send.

75. Start a HYIP and do a runner.

76. While most webmasters use PPC to refer to Pay Per Click old timers use it jokingly to refer to P*rn (where *=o), Pills and Casinos. Those are probably the three biggest money areas on the net and have probably made more millionaires than any others. But they are very competitive and are difficult markets to er, penetrate. However, there are lots of legal, legitimate opportunities here some of which are expanded on.

77. Example of a pure arbitrage opportunity: For a while buying traffic via Google Adwords and sending that traffic to pages of little content and Google Adsense ads generated reasonable profits when done astutely. Sure, Adwords and Adsense are two sites of the same coin. But I did say you needed to be astute to recognise where the opportunities were and you need to test, test, test. There are still lots of contextual arbitrage opportunities about. Especially when you work across programs (e.g., buy traffic from MSN, sell to Yahoo).

78. There are a lot of arbitrage opportunities in the finance world as discussed below but if economics and finance talk bores you to death, there's sports arbitrage. Different online bookmakers may offer different odds on a sporting event. By taking the better odds at each bookie you could come out ahead irrespective of the actual outcome of the event. If you're really clever you could make a program to do this for you. Why don't the bookies adjust their odds based on what their competitors are offering? Because they have to balance their own books. Their prices are decided based on how their own punters are betting.

79. Hosting: You don't need to buy a lot of server hardware to provide a web hosting service. Many big hosting companies allow "reseller" accounts where you sell hosting plans to customers and the hosting company will host them all for you under your Reseller account umbrella. You get to charge customers as much as you want. Some Resellers provide value added services and charge more for these. At places like WHT you'll find that resellers sometimes sell their customers as a "bundle" i.e., you can pay some money to buy a reseller "business".

80. Related to the above is free hosting where you provide small website owners free hosting and in exchange you serve ads to all their pages to make the revenue to pay the hosting company and yourself. Early pioneers of this model are well known names like Geocities and Angelfire.