Point your wap browser at:
http://winksite.com/books/cc
and you will be able to read several Creative Commons ebooks.
Russ Beattie (
www.russellbeattie.com) had a site up with hundreds of Gutenberg project ebooks readable by wap2 (xhtml) but he took it down because it wasn't getting enough hits to justify maintaining it. It was based on some code he wrote, maybe he will be willing to share the code.
As for viewing what you call "standard mobile-friendly sites", - most modern wap2 phones should be able to view them out of the box. Older wml only phones will require use of a proxy that converts html to wml. Some carriers (Nextel in the US, for example) have a proxy built into there wap gateway which does this transparently, although not very reliably (many sites error out). Google has a free html to wml proxy at
http://www.google.com/wml?hl=en&wmlmode=url and my own wap site,
http://yeswap.com is a directory of 350+ wap and mobile-friendly web links which invokes it's own html to wml proxy when it detects that you are following a link to an html site with a wml -only device.