My current favourite is https://twitter.com/BNArchive
Fascinating link to our past, although once reeled in by twitter you may feel the need to spend £ to explore the actual site. It’s great for social historians, genealogists and newspaper fans.
Archive information http://www.britishnewspaperarchive.co.uk/help/about
Read the blog http://blog.britishnewspaperarchive.co.uk/
Just for fun. Forget the ship of Theseus or Cutty Sark, this is a genuine 100% reproduction and mighty fine too! https://twitter.com/ScottishCrannog. Twitter is regularly updated with information about what’s up and coming. Play with old tools, make fire, embrace your inner pagan – semmits advised.The serious side of archives and underwater archaeology can be explored in this very interesting document. http://www.archaeologyuk.org/archives/Maritime%20Archives%20Element%20Two%20Report_FINAL_Sept_09.pdf