On this link you can find very nice vintage patterns and they are all for free. Some of them are fashionable and wearable still now. These patterns are not protected by copyright and you can use them as you want. This links is www.freevintagecrochet.com
Another free crochet and knitting patterns you can find on this link.www.purplekittyyarns.com . Especially the afghan patterns hit my fancy.