It's interesting - and occasionally terrifying - to see what's happening in the Web2.0-Social Media-Cloud Computing world. There are many startups trying to be the next Google, the next Flickr, the next Reddit - but they are actually trying to become the next Yahoo, and of course they often don't make it. The reason might be that it's not really possible what will be the next big thing, but it's pretty easy to see what is the previous big thing. The reason I'm writing about this is that I recently got the impression that Web2.0 startups have finally proved that they are able to build lean and efficient solutions to a big bunch of specific needs. A couple of guys, a couple of months and a couple of thousand dollars can make something pretty extraordinary - but we already know this. Yes, we have plenty of proof, point taken by most of us, you don't have to prove it again. I think it's time for the next step, it's time to help companies, the enterprise, how to make use of these applications, development tools and methods. Not many doubt that Gmail has better usability when it comes to email than Lotus Notes or Exchange, or that www.rememberthemilk.com is better with todo lists than Outlook, but what really matters right now is not this. What matters is how you can put dozens of building blocks like these together and build up an enterprise stack from them.