E-Business 2.0

What do we know about e-business? Can we consider a corporate site a form e-business? And what about an internet-store? Try a search by any of the popular engines and you will learn a lot about e-business centers but much less about e-business as such. Most web-developers still fail to offer anything beyond the very conventional solutions: official web-site, catalogue, online store, etc. But is that really enough to develop effective e-business solutions?