The departures come as the social networking site has struggled to generate substantial AD revenue and is running up against a tough AD environment in the recession.

三位高管离职正值这家社交网站在经济衰退中难以实现充足的广告收入、遭遇艰难的广告环境之际。

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This combined with a slowly recovering ad spending environment, CBS is starting to see an improvement in pricing.

FORBES: Advertising Turnaround Takes CBS To $25 For Starters

Heading into 2013, the company feels confident about the advertising environment and is still leading in terms of ad pricing and volume.

FORBES: CBS's Ad Growth And Better Margins Lift Outlook

Some experts have questioned whether mobile ad-hoc networks can work reliably in a warfighting environment, but the news so far from testing of Army versions is very positive.

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