It seems to me that Podcasts are popular amongst a certain (geeky) user group but mostly ignored by the rest of the Internet. Honestly, when was the last time that you have listened to a Podcast? I have to admit that I'm also not listening to Podcasts mainly because the lack of time but also because of the difficult to find Podcasts that are interesting enough.
Youloud tries to make at least the second concern irrelevant. It lists a lot of Podcasts in their directory sorted by date, popularity and other parameters.
The site got the typical web 2.0 look and feel offering lots of user interaction like comments on their site. The top 100 list should probably be your first stop into Podcast-land. It contains however a large amount of adult Podcasts which are not suited for minors.
One nice feature is that you can listen to all podcasts on the website and do not have to load them to your mp3 player or download them first before you can listen to them.
I personally prefer to navigate the site using the categories offered on the main page because it gives me the option to browse podcasts that I'm interested in.
Update: The Youloud podcast directory is no longer available, the website returns a 404 not found error message when you try to load it. There are however a couple of options that you can make use of instead.
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.