Learn about the SOA entry points at a presentation (that may be) near you.
I've talked about IBM's Entry points into SOA. Now Get started on SOA with WebSphere's proven, flexible entry points is a day-long event to teach you all about them. It's being held on nine dates in June in locations all around the world, including New York, NY and Seattle, WA in the US. I think the cost is free.
Can't attend one? You can still go to the page and download the presentations.
developerWorks Live! briefing: SOA Entry Points