Recommended books on Web Services and Portlets

Our manager today has informed us that our group wi开发者_StackOverflow社区ll now handle a new project for which we are not so familiar. He only got a brief overview also of the details.

According to him, this is a project that uses Portlets that calls web services call and implements SOA architecture. I see three topics here for which I am not familiar.

• Portlets
• Web Services
• SOA

I learn fast by reading books but when I looked up at Amazon to purchase a book, I saw a lot of books on web services. I cannot filter which book would suit my needs as I see lots of topic (RESTful Web Service/SOA/Web Service...).

Portlets book is another of my problem also. I have checked also other questions on SO but I am not sure if they are the same with my problem so I decided to post to clearly state my question.

By far I have experience only using Servlets/JSP/Struts/Spring but this does not stop me from signing up for the job since I think this would be a good opportunity for learning.

J2EE Web Services is a good read on Web Services.

Portlets In Action is a good book on portlets. Leans towards Liferay for the examples but still vendor neutral.