PayPal has launched the PayPal Storefront Widget, a web based widget that allows anyone to embed a store widget on a web site.
The Storefront widget offers a seamless e-commerce platform for those wishing to sell anything on their site, such as t-shirts, CDs or other items. Users can set the widget to "sold out" or "sorry were closed" from the central control panel, and comes standard with a sharing option.
Visitors are able to grab the html for the widget from the widget and display it on their own site should they so desire.
Initially there are some limitations with the service, for example you only get the choice of one size for the widget, and it currently only supports sales in US dollars. PayPal though will be seeking user feedback once the program takes off, and they are open to expanding the options available in the future.
PayPal sees a lot of possibilities for the widget; for example, it provides a seamless shopfront for bands on MySpace who may want to sell recordings.
It may also be a substitute for donation buttons that are occasionally used by bloggers as well.