Wists "is a free service that lets you visually bookmark any page on the web, then automatically create a small image, text summary and add set of keywords." Since I found it, I've been going through it for sewing patterns - it's full of t-shirt alterations, hoodie patterns, loads of skirt tutorials, and much more. While it seems mostly focused on DIY and other such craftiness, you can apparently search for anything. Focusing on DIY, it's a great way to get a lot of patterns at once - for instance, wrap around skirts. Handy!