I don't think it's just me, but a lot of podcasts that I used to enjoy seem to be gathering barnacles and getting longer and longer. I'm now firmly of the opinion that if a podcast is longer than an hour then I'm going to get bored while I'm listening to it.
Starting with This Week in Tech and followed by other podcasts like EngadgetHD, PC Magazine Podcast, and even The Instance! have started covering topics at depth where they ramble and as a result they are getting closer to two hours long than one.
I'm not sure that the Manager Tools/Career Tools method of breaking up long items into multiple short segments is much better, as I've been skipping topics lately when they are in three 40-minute segments.
I sure wish the trend was more towards Wall Street Journal This Morning, where they cover a lot of info in just a short amount of time. Of course they plan and execute a radio show every day so they are veterans at this stuff. However, all of the podcasts I listen to have been making shows for over a year.
I'm at the point where I'm considering cutting more programs off my list. Perhaps it's because I'm back to working from home 4 out of 5 days a week that I've lost my tolerance for long podcasts, but it really seems to me like they've gotten longer.
(I also hate how trying to grab links from google searches includes a bunch of stuff in the URL you don't want.)