If you are not familiar with the Forth Interest Group, our UK Chapter has a great web site at forth.org.uk with links to the best Forth sites and some interesting, original material. FIG UK also has a unique lending library with all the latest and recommended Forth books, magazines and conference proceedings. (You have to join FIG UK first - just £12/year)
The International FIG site is at http://www.forth.org/ which includes a library of free code and links to nearly every Forth vendor, professional and enthusiast.
Please support FIG.
Other Links:
FIG UK has tutorial material at forth.org.uk
See also Leo Wong's Inching Forth