I have always understood that the difference between knitting and weaving is
that kntting uses a continuous thread whereas weaving has two separate sets
of threads which are woven together. There are several things which look
like knitting to the casual eye; naalbinding and tablet weaving for two.
May I suggest that people interested in the fabrics you can make from yarn
get hold of a copy of 'Braids & Beyond' by the Braid Society and published
by the Carey Company for about a tenner. This gives diagrams and simple
instructions for just about every type of braid known to man, including