I'm very new to asp, yet alone asp.net even...

I'm doing a website using asp.net, but what I wanna do is to be able to see who is on what page on the site. I may or maynot integrate a log in feature. I haven't decided, but how would be able to see what ip address is veiwing what page?

Then from there I would also like to be able to force a popup page on that user as well, and possible even a simple chat interface...

If you have any info on maybe where to start, I have some books on asp.net and vb.net... but can't really locate any information that would assist me in completing this...

If you have any info, links, or anything else that would help me. I would really appreciate it!