SAN BRUNO, Calif. -- Last month, a YouTube user, TomR35, uploaded a clip from the AMC series "Mad Men" in which Don Draper makes a heartfelt speech about the importance of nostalgia in advertising. (Today)

WASHINGTON -- On the Internet, data moves at the speed of light. The Federal Communications Commission, not so fast. (Today)

Whoever said technology was dehumanizing was wrong. On screens everywhere -- cellphones, e-readers, A.T.M.'s -- as Diana Ross sang, we just want to reach out and touch. (Today)

SAN FRANCISCO -- Apple jumped into the social networking business on Wednesday, introducing Ping, a service built into iTunes that is intended to help users discover new music and, presumably, buy more songs from Apple. (Yesterday)

SAN FRANCISCO -- Auriane and Sebastien de Halleux are at sharp odds over "The Girl With the Dragon Tattoo," but not about the plot. The problem is that she prefers the book version, while he reads it on his iPad. And in this literary dispute, the couple says, it's ne'er the twain shall meet. (Yesterday)