PhoneID lets you log in to websites without a username or password. Your phone is your identity. You don't need special apps or plugins: just your phone (it works on iOS, Android, and Windows Phone). Additionally, PhoneID let's you keep your Facebook account, email address, and phone number totally private.
SendTab connects you to a private group in the cloud so you can share links instantly between any device. SendTab is a free plugin for Chrome and Safari, and an iOS app for only 99¢!
jQuery is proven to provide rich content and effects for UI widgets and plugins. It is also said to be one of the strong contributor in the ajax applications implementation.