After Delicious melted down, I quickly migrated all my past links to Diigo, only to re-migrate them back to Delicious after it was bought by AVOS, led by YouTube founders ChadHurley and SteveChen.
Viacom, for its part, is seeking to depose top names from YouTube and its parent company, Google, who might qualify as celebrities themselves, including Google co-founders Larry Page and Sergey Brin, and YouTube co-founders ChadHurley and SteveChen.