My advice to anyone starting out would be to stick with something that is "risk free".
e.g. Affiliate marketing - promoting a product on Clickbank, PayDotCom etc
Yes it may take some time and actual work but if all else fails, you've only lost
some of your time...and not your hard earned money.
Once you start seeing profits, you can then re-invest some of that into testing new
ideas and methods.
While it is possible to make good money with CPA offers, you really need to be able
to test different offers, different media for your ads etc, so for the beginner this
may not be the best option.
Richard