I would like to start an online business to give back to the online community and make some money in the process. What are some ways I can do that?

You could create your own websites and earn money by using Google Adsense on your websites. Registration with google is free.

If you got a website or a web-blog, you could make money with putting advertisements on your site (by google). If someone clicks on these ads, you will earn money.

If you don’t have a website, you may start creating web-blogs (mostly free) with advertisements (google ads) on it.
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You may sell things at Ebay. Some people do business with Ebay and they just live on income from ebay. You may like to look at it.

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You may register with the well known affiliate programme and start earning money by promoting famous products, for example, Dell, Sony. Registration is free.

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A acutual job one can work on using the net to make extra money? No gimmicks or ebay,stocks,surveys,etc.

It is difficult to have an actual job at home, empolyers want workers present working in the office, unless you have already been with the firm some years and you can then get to work from home. There are many gimmicks like surveys that you already know about. If people who are answering your question knew how to make money from home, they would be busy making the money and not answering questions for FREE