This is a list of programming tutorials for ZX BASIC.
How to Write a Pac Man Clone (ZX Basic Project from the beginning)
Making ZX Basic to work with Tommy Gun
How to Use Inline Assembly
ZX Basic + Fourspriter (Spanish)
Fondos vectoriales con SUVLEIR 3.0 (Spanish)
Link: http://tcyr.wordpress.com/2012/03/07/suvleir-3-0-super-ultra-vector-library-experience-inspire-redux-3-0/ and via Google
Using Beepola with ZX BASIC