Here is a set of links to sites with various information of the AK rifle series.
www.club.guns.ru/ - A decent site with info on lots of Russian weapons, not just AK's
www.valmet-weapons.com - As obvious as it looks, this is all about Valmets and Finnish AK's
www.velocity.net/~digital/weapons-Decent weapons related site with a bunch of good links.
www.milparade.com/kalashnikov/chapter4/contents.shtml A pictoral history of the AK series.
smallarmsreview.com/june.htm- A site with decent info on AK magazines.
kalashnikov.guns.ru/history.html More history of the AK series.
www.alpharubicon.com/leo/akseries.htm A must read article on the AK and its practicality.
...an excellent primer on postban rifles!