If you've ever seen or taken a picture of something you were unable to identify, Wolfram's Image Identification Project may be able to help. I used it to upload a photo of a bird I didn't recognize at the beach, and it named it for me:
It doesn't always get the identification right, of course:
That's a zentangle I drew, not lace, so IIP does make mistakes. Still, if you're researching something and need to ID an image, this might be a quick way to get some help.
(Link to IIP swiped from Gerard over at The Presurfer)