Sell & promote digital products, including audio, video and whitepapers/ebooks - integrates with Paypal, and allows you to discount your products if the buyer shares it via their networks
Yasiv visualises data around products, allowing you to see what peripheral interests buyers are likely to have. i.e. If you liked this book, you're likely to like this one.
Twitter productivity tool - allows scheduling of messages, and a variety of other tools to help you "be" in Twitter without actually being there! Apply caution - People like true engagement! (Well durrr)
Create an ecommerce store within Facebook. Free service allows you to add your products (can be digital or service packages) to a store within your Facebook Page (custom tab)