The Internet is my favourite craft tool because it inspires me and provides me with endless ideas, templates, patterns, tutorials, etc.
I think the main thing is not to limit your search to a specific craft only. For instance, if you're a cardmaker don't just look at cardmaking or cardmaker's websites/blogs, widen your horizons by looking at sites on other crafts like patchwork (even if you don't like sewing), appliques, stained glass, children's colouring pages, etc. Whether you're looking for something specific or just surfing the Net you're certain to find a template, pattern or idea that you can use or adapt to suit your needs craftwise.
Here are a few examples of cards I made using/adapting free templates or patterns I found on the Internet:

I found the template for the dove on a site with lots of free stained glass patterns.
This flower is made of textured card and I found the template on a webiste about appliques. I made a few changes to the original flower.
For these dresses I used a template I found on the Internet and which was to make a dress shaped card, instead I resized it and made these cute little dresses using felt.
Here are a few links for you to explore:
