Just to get us started:
List of British words not widely used in the United States
Browse Old English First Names
http://baby-names.familyeducation.co...in/old+english
Pre-1600 English Brass Inscriptions: Men's Names Sorted by Frequency
Pre-1600 English Brass Inscriptions: Women's Names Sorted by Frequency
Faire Names for English Folk: Surnames
The Best of British Slang
Separated by a Common Language (blog)
Separated by a Common Language (website: TV and film tropes)
List of British words not widely used in the United States
Browse Old English First Names
http://baby-names.familyeducation.co...in/old+english
Pre-1600 English Brass Inscriptions: Men's Names Sorted by Frequency
Pre-1600 English Brass Inscriptions: Women's Names Sorted by Frequency
Faire Names for English Folk: Surnames
The Best of British Slang
Separated by a Common Language (blog)
Separated by a Common Language (website: TV and film tropes)