WP E Signature, by ApproveMe, is a high-end, paid WordPress plug-in that allows users to create personalized, legally binding contracts that can be signed electronically with a computer mouse or touch screen. It’s the first application of its kind that I’m aware of, and can be either an excellent time-saver, or a costly burden. The app isn’t for everyone. There’s an immense learning curve to using it, and the price can be prohibitive. But when properly installed, it’s powerful, and can save a business money over time.