Let me preface this post with a note. I am completely impartial to how people choose to make a living. I am just reporting on a trend I have noticed recently (on this site and in general).
I've been doing a lot of reading on the YE forums over the past few weeks, and I see a recurring theme in the types of businesses MANY (not all, maybe not even a majority, but a huge amount) people have been choosing to launch. Tons of people are starting proxy sites monetized by adsense links, and blogs monetized by text-link-ads. I do not believe that these ideas are innovative or sustainable. Sure, you may make $20 on a good day, but where's the growth? Where's the fun in such a business? And how is that in any way innovative? So many people are doing this, and I just see such fierce competition in the online advertising/domain squatting industry, that I don't understand why ANYONE would choose to start such a business now. Everyone wants the dream of 'passive' online income, but I wouldn't even call it an income when you're making $6 or even $60 a day. Where's the upside there anyway?
I really think that everyone on these forums needs to understand that businesses need to be innovative, and have a sustainable competitive advantage to compete in the long-run. I would even argue that selling things on eBay is a trite business to have, as you're really at the mercy of a 6,000 pound gorilla when it comes to your account and fees (as we saw this week). Let me note that I do see eBay as a good starting point for beginners.
Create an innovative product, deliver a superior and/or unique service, but, for your own good, don't just start a bunch of websites and hope that people click your ads. Sure, it may be easy, but it's so short-sighted, and is not really sustainable.
I know that there are syntax, grammar, etc... errors on here, I'm not normally a verbose poster, but I thought that this would be valuable for the community. Take it with a grain on salt, but it's my honest opinion.