Due to the fluid nature of the web, we can't guarantee these links will work past the original posting date.

Last week's column, in case you missed it.

Grid Networks is the cross-platform player.

Peer Impact is Windows-only, but looks like it has the content deals and the killer business model.

Network Foundation Technologies can do live streaming to millions of nodes.

If you've ever downloaded IBM Community Tools, a rather huge collection of Java messaging applications, then you've already used Grid's download manager.