With over 350,000,000 websites on the internet, there is a huge demand for content. If you have experience or skills relating to writing, offering a blog posting service could be for you. Lower paid projects might start at around £1 per 100 words, with quality focused projects being in the £2.50-10 per 100 words range. Sites like People Per Hour and Elance are great for picking up paid writing gigs, without actually having a website.
The internet changes so fast that one year online equals about five years in the real world. But the principles of how to start and grow a successful online business haven't changed at all. If you're just starting a small business online, stick to this sequence. If you've been online awhile, do a quick review and see if there's a step you're neglecting, or never got around to doing in the first place. You can't go wrong with the basics.