First, you'll have to go to settings, Ethernet Connection (1200) or Phone Connection (1150) and then tick the HTTP proxy box and enter the host as your IP address (1200) or 127.0.0.1 (1150). Then go to the online bookshelf, and you can access those IMPs. (You can find your IP on Windows by typing "cmd /k ipconfig" in Start -> Run).
If you want to do regular browsing, then you can create an index.html in the content folder with links to your favorite sites e.g.
Code:
<html><body><h1>Links</h1>
<p><a href="http://google.com/">Google</a></p>
<p><a href="http://www.mobileread.mobi/">Mobileread</a></p>
</body></html>
You can then use Menu -> Directory to go to this landing page, and from there on explore the net!