Lonely Planet
Lonely Planet dot com is an excellent site all round, no matter where you're travelling. All the info's here that you're likely to need if it's a guide you want, including the latest travellers' tales from Bulgaria.

CNN's Travel Guide to Bulgaria
Maps, photo album, culture, more info for travellers.

Bulgaria Online
A Bulgar site for a change, in English, with info on politics, leisure, finance and links to the Bulgarian press, some of which is on the net in English and linked to here.

Bulgarian Photo Album
Just what it says!

The Rila Monastery
A page of information and some nice pics.

Pics of Bulgaria under Communism
Well, I was quite interested to find this site, which is entitled "Memory Lane for Homesick Bulgarians"! There is a list of the titles which you may not understand - just start clicking the links and you'll see what you'll see!

Bulgarian Cuisine
This is an amazing site with loads of recipes just written on one hugely long page - keep scrolling to find what you want - but at least it's all here!