Affiliate Marketing BUSINESS (business=not job, requires a lot of research to get into, guaranteed to have failures, requires a lot of work) Selling on ebay (you can do anything from sell stuff from your room to start selling wholesale merchandise)
buying and repairing electronics/other items to sell online
building websites for other people (requires technical knowledge)
writing quality ORIGINAL articles (requires at least pretty good writing skills). You can do this for other people, or you can go to associatedcontent and get paid that way
bookmarking people's websites with 30+ bookmarking websites, they usually get paid about $3 for it
submitting websites to web directories
graphic design for websites (website banners, headers, etc)
If you're 18+, there's a few customer service jobs and telemarketing jobs you can do from home. They usually require and investment like a computer that meets their requirements to be used solely for this purpose, good speaking skills, quiet enviroment, etc. They're also hard to get.
basically anything that requires technical knowledge you can get paid for online.
data entries are scams
surveys that you have to pay to get into are ALWAYS scams. Even the ones that aren't are a waste of time or just pay rediculously low
in order to get a "free" ipod, you're going to probably have to get ripped off, or if you're lucky you'll just have to work your butt of to get it. Its probably the first thing I mentioned
of course there's many other things I could mention.
You can loose your shirt in even stuff that's legit, like affiliate marketing, because almost every ebook out there promises "instant success", which doesn't exist. Most online guides to anything make money is junk.
If any of you want to know more about any of this stuff in more detail, send me a message.