Mention RSS, and the people who’ve heard of Really Simple Syndication automatically think "blog". That’s unfortunate, because you can use RSS in many more ways to develop a coherent marketing and branding strategy than merely blogging.
Think beyond PR and spin, although you should be alert to harmful mentions of your company ANYWHERE and react immediately, [...]

RSS search tools aren’t as efficient as Web search tools.
Chris Sherman’s article "RSS Search Engines" explains:
Although there are literally millions of feeds available, finding those that are appealing and relevant to you isn’t always easy. The major search engines are all dabbling with feed search, but none offer a robust service as yet. And [...]

The fast answer to "how long should our podcast be?" is: as long as it needs to be.
The article "IBM reaches shareholders through podcasts" notes:
The two that IBM posted in August were downloaded 10,000 times, Edwards said. The company plans to post a couple a month for the next year. But they will be [...]