It may not be everyone's cup of tea, but for those using these
newfangled Google+ Communities, we have a new Exim community:
https://plus.google.com/communities/116114765952707374589
While I'm at it ... there's a Google+ Exim page, which is used to
announce releases, release candidates, ask occasional questions, etc:
https://plus.google.com/101257968735428844827/posts
Meanwhile, over on Twitter, Nigel has a public curated list of Exim
folk:
https://twitter.com/nmeth/exim-folks
Regards,
-Phil