Bequest ... welcome to QB!! Peckish beat me to pointing you toward the Quilters Cache website for lots and lots of blocks.
But wait ... there's more!!
Most of the major fabric manufacturers offer free patterns that you can download. Below are some links to some of the manufacturers that offer free patterns.
http://www.robertkaufman.com/quilting/quilts_patterns/
http://www.michaelmillerfabrics.com/...tpatterns.html
http://www.windhamfabrics.net/cgi-bi...p/projects.cgi
http://www.makeitcoats.com/en-us/dis...rafts2eproject
And there are more ... I found this blog that has most graciously listed them already for me!!
http://www.thecalicocottagequiltshop..._Patterns/1008