Hi Arm4,

No tutorials.

Site link:
http://www.electro-server.com/

Articles:
http://www.electro-server.com/articles.aspx

Open-source examples:
http://www.electro-server.com/showcase.aspx (plus a bunch that get intalled with ElectroServer)

The closest thing you'll find to a tutorial are some chapters out of my game book, see my footer.