I see people who have set up internet sites selling a product, and not necessarily their product. All they do is create the site and promote the product, possibly handle the order, then the actual product owner (or w/e) deals with all the delivery etc. and you take a cut of the profit.

How does one get involved in this, how does one find a product to sell this way, and is this a feasible and good idea?

It was just a random thought i decided to explore

http://www.webmaster-talk.com/affiliate-programs-forum/

http://www.webmaster-talk.com/monetization/

You may find good, inexpensive products to sell from www.7dollaroffers.com. This site has an amazing collection of products which you can promote as an affiliate and collect 75% commission on each product sold. There is nothing to sign up for and you only need a paypal business account to receive payments. Hope this helps!