Of Hammers, Wrenches and Screwdrivers

This article has an interesting table comparing blogging, online communities, and LinkedIn from a professional's perspective. The thesis is that each is a tool for a different task, hence the title...

Of Hammers, Wrenches and Screwdrivers

Asking which of these is "better" is like asking which is better: a hammer, a wrench, or a screwdriver?