Was the post-9/11 boost in conferencing temporary?

Today's Boston Globe takes a look at audio and videoconferencing post-9/11. Right after the tragedy, there was a noticeable spike in conferencing usage and the stock valuations of companies associated with the technology. But has the uptick lasted a year?

But despite plunging costs and improved convenience, videoconferencing still can't shake a widespread perception it remains too klunky and contrived for widespread use. And ACT, Polycom, and WebEx shares are all well below where they were on Sept. 10, 2001.

It does seem that conferencing is still on the rise, but more as a cost-cutting measure than a fear of flying/traveling.