In October Skills Matter & Well-Typed are organising a few Haskell events in London that will (I expect!) be of interest to people here.
On the 8-9th of October is the Haskell eXchange, a 2-day conference on various topics about Haskell. The programme includes a variety of topics from the theoretical to the practical, with a mixture of talks, keynotes, lightning talks and workshop. A promo-code is valid until Sept 19th for 25% off - use HASKELL-EXCHANGE-25. For more details and booking, see
https://skillsmatter.com/conferences/7069-haskell-exchange-2015.