I also look through my local newspaper on the web. I love the online virtual tours and tons of pics available. I has really helped us to narrow done which houses we want to go look at personally. This has saved myself and our realtor alot of time. I also do alot of research on our county's assessor page. I can see who owns a property, when they bought it, how much they paid, comps, taxes, how many owners, etc.
The biggest things that I am looking for in a realtor's page is a good search tool. I want to narrow down my search by price range, # of bedrooms, # of baths, garage, etc. And pictures, pictures, pictures! With the high gas prices, I think alot of people want to really take a look at a property through pictures first before driving across town.
Hope this helps!