The well-known Anglo-Saxon historian Simon Keynes compiled what he calls 'A Select Bibliography' on Anglo-Saxon history some while back, and it was later revisd and put on the internet. The last update to this seems to have been done in 1998, but nonetheless it's a pretty comprehensive list of the sources both primary and secondary. It's a very useful resource, covering a very wide range of topics and definitely worth a look to see what's being written about a particular aspect of Anglo-Saxon history. Just follow the link below:-