Here is a list of links that could interest you:
Three Rivers Museum Trust Facebook Page
Three Rivers Museum Trust Blog
Abbots Langley Local History Society
Croxley Great Barn
Hertfordshire Genealogy
Rickmansworth Historical Society
The Museum on YouTube
Metro Land Blog
Our Oxhey
Herts at War

Sarratt Local History Society scrapbooks 


Three Rivers District Council - conservation advice and locally important buildings:
Rickmansworth buildings of interest (non-Listed):
Watford Museum:
Chorleywood House Estate:
Chiltern Open Air Museum:
Church Street Station:
Rickmansworth Metropolitan Station:
Natural History Museum, Tring:
Kids In Museums:
Show Me:
24 Hour Museum:
Salter's Brewery:
Elstree & Borehamwood Museum:
Rickmansworth published by Norman Lucey:

Archaeology Links 
The Council for British Archaeology:
The Prehistoric Society:
Ancient Britain and its European Context:
Society of Museum Archaeologists:

Archaeology Links for Teachers and Students
Romans in Sussex:
Past Explorers:
Model Building of Ancient Themes with Lego:
The Young Archaeologists Club (YAC):


Pod-casts about pre-history sites and discoveries from across the globe can be found at:
Stone Pages: (for jobs and resources)