Wandering Around the Internet

Okay, so I admit I am at work and I spent a little time looking for passive income opportunities online. There are so many ways to make a little money out there, and all of them claim to be "the one." I really can't decide at this point if any of them are really worth spending time on. Some people say you should just pick one affiliate program and stick with it and other people say work them all through something like an information website or through your blog. Its definately a vast sea of opportunity out there in cyberspace. Affiliate programs, ebook sales, adsense, t-shirt and product sales, dropshippers.....how does one choose?