Four years ago I took a .NET training given bij Twice IT (http://www.twice.nl). Together with my best collegue Rinie Egas, we kept in contact. The last time we met him was at the Microsoft DevDays in The Hague. Since then I never heard anything anymore, until today. It seems he left Twice and is quite active in the .NET community. Make sure you checkout his weblog at http://www.alexthissen.nl.
I’ve written many posts about the strengths and weaknesses of Event Sourcing, but I still thought it might be useful to provide you with a list of the most important practical guidelines and heuristics that I think are needed to be successful with Event Sourcing