Web 2.0 is not a buzz anymore, has been widely adopted and results have been too encouraging in the consumer world to discard it as just another fad!! Business is also slowly adopting web 2.0 in both their internal and external applications. If you see, technology has taken time to mature always before it gets widely adopted. We have seen it with SOA and SaaS, it was seen as next generation application architecture by modern day architecture gurus. But it has taken time to mature and embraced by large majority of business and makes effective use of it. There have been some rumors of web 2.0 bust and also of next generation web 3.0. I do not want to comment on it yet because I think it is too early to reject web 2.0 and its potential has not yet been realized. I have seen in last six months that there has been shift in business serious dwelling in web 2.0 ideas and trying to leverage network effect of web 2.0 in their business model.
I have come up with a summary table of what web 2.0 applications are and how they can be used in the internal and external applications. Please feel free to comment.