Sap Newbie

i have worked with java,jsp's for a long time. Im now new to the SAP technology downloaded and installed the SAP WAS sneak preview and did some tutorials on the netweaver studio from the help documentation. However i get lost everytime i try to focus on something so i was wondering if some one could help mefind recources resource on SAP java and how can i get to portal development (what tutorials should i look for ebooks, etc..) thanks for your concern.