The English Diaspora project at Northumbria University has a Digital
Community at

“Our aim is for the Digital Community to become an active exchange
platform. We will be posting stories about our research and relevant
news, but our primary aim is for the site to be a forum where members
can share their stories, experiences, memories and thoughts about the
English Diaspora. Perhaps you are of English descent and have a family
story to tell. Maybe you are interested in English ethnicity at home in
England or overseas. Our Digital Community is a place where you can
engage with people who have the same interests, including the project
researchers. Please join in and spread the word about it.”

I will be posting something on it soon, but I urge everyone to look at the site, and perhaps also contribute to it.