A couple years ago, you could find all the podcasts in existence just by checking the iPodder Directory to see the eclectic mix of homegrown and technology-related audio shows. Now the number of podcasts has exploded as many mainstream news and entertainment companies jump on the bandwagon, and Jupiter Research estimates that 9 million Americans downloaded a podcast in the month of June. I’ve done a Guide to Podcast Directories but I’m wondering how you find out about good podcasts. Do you find them on news websites or other media sites? Do you check the iTunes podcast directory? Do you hear about them from friends and family? Share your thoughts on how you find good podcasts in the comments below and I’ll run the best ones in next week’s Your Take Roundup.