Social networks aren't just for teens anymore. Executives and companies are increasingly using online social networks for a wide range of activities including recruiting, branding, advertising, sales, business development, market research and customer service.

There are a number of social networks designed for executives, including LinkedIn, Ryze, OpenBC and Ecademy. Other firms are creating their own social networks to keep in contact with both company alumni and customers.

I'm sure the very thought of text messaging entering the final stages in its life is a bit too much to fathom right now, considering Gartner believes 2 trillion messages will be sent this year and most analysts think text messaging will grow rapidly, but I'm not so quick to jump on the bandwagon.

The way I see it, more and more companies are realizing that the cell phone is an ideal place to feature chat applications and with popular devices like the iPhone leading that charge, I think text messaging growth will be stymied sooner than you think.

This video shows how to use RSS with search engines to provide a much richer search experience

A simplified explanation of how a podcast works.

This piece discusses seven aspects of instant messaging, including the future of IM and its implications for learning.

This 18-slide illustrated presentation covers instant messaging basics. It also includes The Ten Commandments for Computer Ethics from the Computer Ethics Institute.

This brief 14-slide presentation covers (1) What Social Bookmarking is, (2) What Furl, Stumbleupon, Digg and del.icio.us are, (3) How you can use social bookmarking at home or at work, and (4) How to set up and use a del.icio.us profile.

This 59-slide presentation gives an in-depth look at the social networking site, Del.icio.us.

This 21-slide heavily illustrated presentation covers instant messaging in depth.