Pete Seeger might not have an official website of his own -- this Wikipedia page will have to do for a link -- but definitely resides in the 21st century. How many other 90-year-olds do you know who are offering a couple free mp3 downloads to promote their latest release? That's right, Smithsonian Folkways is re-releasing the American Favorite Ballads Volumes 1-5 box set, which itself was an expanded version of a collection of songs recorded from 1957 through 1962. You can go here to download Seeger's renditions of "Buffalo Gals" and "Oh Mary Don't You Weep" and then decide if you need 139 tracks (nearly six hours) of Pete Seeger in his sweet, crystal-clear voice accompanied by his banjo-picking. (You probably do.) Not all of it is "kids music," strictly speaking, but there's more than enough tracks that'll be familiar with anyone with more than a couple kids' disks in their collection.