Sooner or later, SOAs will become mainstream.
This page is designed to help you make the transation.
Gartner thinks by 2008 they will influence our thinking, which is very pessimistic !
I am designing Data Architectures with SOA right now.
Check out Strike Iron and their
UNIQUE Web Services Business Directory to understand what it all means.
Here is a series of Useful Links
Follow these Links for Who's Doing What and the current State-of-the-Art.