Westland100.org.uk is a good resource for social and economic historians. In addition to the history of the factory, it features an extensive oral history archive of aircraft manufacturing in Yeovil from 1915 to 2015. Articles and online sound files are provided. Topics covered include: trade unions and women workers.
Chemist store Boots has just released a fascinating timeline of images about its company history which economic historians may find useful. It gives key dates and images of stores and boots beauty brands from 1849 onwards.