Billionaire David Tepper, one of the most successful hedge fund managers in the world, attracted much attention in a September 24th CNBC appearance by presenting such unrestrained optimism that even the normally buoyant network hosts were somewhat surprised.

FORBES: Why David Tepper Is Only Half Right

Sun itself hosts Network.com, a pay-per-use online service offering mathematical and engineering applications launched last March and hosted on what the company calls the Sun Grid.

FORBES: Magazine Article

Those materials included malware that was then able to spread to 100 hosts on the network, according to Homeland Security.

CNN: Homeland Security cites sharp rise in cyber attacks

"If you're always doing the hosting, houseguests can become a money pit, " says Sellery, who hosts the Oprah Winfrey Network show Million Dollar Neighborhood, which challenges whole communities to increase their net worth.

MSN: The real costs of houseguests

Although late-night hosts are known for needling their network bosses on-air, the timing of Leno's latest jabs at NBC seemed to make the network particularly uncomfortable.

WSJ: Fallon reportedly replacing Leno, moving to NY

"When I heard she was struggling, I did reach out to her and urged her to go to take care of herself, get in a facility if she felt she needed, " said Pinsky, who hosts his own program on CNN's sister network HLN.

CNN: Embattled country star Mindy McCready dead at 37

For Fox, O'Brien would be a far less risky choice than tried-and-failed hosts (Chevy Chase, Joan Rivers) of the network's past.

FORBES: Entertainment

Or painfully obvious:For Pepsi Smash, a summer concert series on the WB network, the cola company helped design the set and pick the hosts.

FORBES: Magazine Article

Network administrators with Linux servers can take a number of steps to prevent their servers from becoming hosts for the Trinity attack software.

CNN: New denial-of-service attack tool uses chat programs

Every Tuesday, "All Songs Considered, " the creation of network stalwarts Bob Boilen and Robin Hilton, debuts a playlist of six to eight of its hosts' favorite tunes.

WSJ: The Improbable Rise of NPR Music

Through ECOtality's new partnership, Sprint will provide the wireless network that will allow ECOtality to monitor and manage the Blink Network, an infrastructure of electric vehicle chargers across the United States, for use by consumers as well as commercial hosts.

ENGADGET: ECOtality teams with Sprint to connect Blink EV charging network