phplist is an open source mailing list or news letter manager. It is written in PHP and uses a MySQL database for storing information. It is completely free to download, install and use. Furthermore, it can be easily integrated into any website.
From time to time, Paypal releases paypal coupon codes which provide discounts or no fees or free transaction charges. For someone carrying out daily business through ebay or paypal, this can mean saving of a lot of money.
TokBox - http://www.tokbox.com is a free service that lets you talk with your friends over live video. People with hi speed internet connections and webcams can conduct face-to-face chats inside a web browser by simply adding a TokBox module to their pages on social websites such as myspace.
