Thank you for your question Mr/Mrs Anon. Of the fabric shown in my Unfunded-Liabilities posts most are scrounged up on E-Bay.
The linen is actually upholstery ( for furniture ) fabric and was purchased for me to practice my very rough and ready trouser making skills with.
The two tweeds, the green/blue herringbone and the check are from Howard, of British Fabrics, an E-bay store I can not recomend enough!
I hope that helps.