Those folk in Suffolk must be big into their archaeology. Their County Council runs this site which focusses on archaeology in the area. Has quite a few links and also information on sites in the area.
Another great site on things archaeological. Archaeologists seem to be making even better use of the possibilities the net has opened up than historians. This site provides some good quality, free services.
"WikiArc is intended as an online toolkit for professionals, students and other people interested in the fields of archaeology, classical antiquity, palaeoanthropology, forensic anthropology, cultural heritage studies, and Quaternary sciences."
This site is quite specialised but if you're doing research or looking for resources on archaeology in prehistoric, ancient or medieval Britain then this is the place for you. Lots of neat images - they have a link to their photostream on flickr.
This is more for archaeology than history, but looked so useful I added it. I think it's kind of a database of archaeological sites and news maintained by archaeologists.