As a means of communications, podcasting has certainly exploded in popularity as a way for consumer and tech companies to reach their constituents.

One area where podcasting has been slow to catch on is investor relations, but that may be changing.

"I wouldn't say investing folks aren't going out there and using podcasts and PR folks are," says Farrell Kramer, founder and president of Farrell Kramer Communications. "PR folks are finding uses for it a little more quickly."

A major apprehension ...