Sett Table- A table of setts for standard yarns.
Weaver’s Tools- The New York Weaving Guild has several helpful tables on their site.
Tim’s Treadle Reducer- Program to find a tie-up for producing the same pattern using a loom with fewer treadles.
Conversion Calculator- An online conversion calculator.
FiberLinks Charts & Resources- List of handy charts online.
WinWeave- a drafting program for when you’re tired of filling in all those little squares of graph paper.