I use so many Google products it's getting ridiculous. I use GMail (with its Notify app), Google Analytics, AdSense, their search engine, their desktop search engine, Google Sitemaps and now their blogging tool. And I don't pay a penny for any of it. And it's all better than any of the competition. In fact Google pay me for the ads, not a lot admittedly because I hardly get any hits but I've read about people who make a tidy income from AdSense. I remember a few years back there were lots of free things on the web until all the dot coms went bust. Obviously Google are making a good amount of money from the targetted advertising but how long can it go on? Who knows...