ShareMeNot is a Firefox add-on designed to prevent third-party buttons (such as the Facebook “Like” button or the Twitter “tweet” button) embedded by sites across the Internet from tracking you until you actually click on them.
The dimensions plugin extends jQuery with dimension centric methods. It has been rigorously tested and gives accurate results cross-browser. Methods like width and height are extended by dimensions to enable you to get the width and height of both the win
PixGallery, automatically checks the actual size of your images agianst the width and height specified in your html and creates a cached thumbnail images based upon your desired image size and links the cached thumbnail it into your html code