Fortified England lists the chronological history behind fortified sites in England. The number of sites is growing daily as more information comes to hand. You can already choose from a list of over 3,000 sites.
Discusses how tracing obsidian artifacts back to their
geological source is useful to archaeologists, offers
details about the MinOAN obsidian reference collection, and describes how archaeologists can have
obsidian artifacts sourced non-destructively for free.