Reading on some automation tools (Software Testing)

Well, there are many blogs I am bookmarking, which I refer to at times when I need to know something about Automation tools in Software Testing.

Though being in testing since last few years.. I did not touch to many automation tools. But recently I started reading on Winrunner and QTP automation tools.

Oh yes, I just remembered. I need to do some R&D on Quality Center package (Provided by Mercury). Have to go..