Podcasting combines the iPod with blogs, MP3 and RSS. With an iPodder, you get RSS feeds of audio programming, which can be played on iPod. making possible to assemble a new grow-your-own radio. A huge jump past streaming media, and could take root before
A GoMeme is a specially modified piece of content that spreads virally along social relationships in a manner that benefits every site that helps it spread. (BEING IN A SMALL WORLD IS NOT GOOD UNLESS YOU ARE A VIRUS)
When designing the software for social networking sites it is really important to consider the node-interest (motivation), the chain length, and the need for a feedback loop.