Finance:
Facebook to file for $5 billion IPO.
Digital Music:
Neil Young building digital music device for downloading.
Business Strategies:
Online petition asks Apple for ‘ethical’ iPhone.
Apple now top PC maker, report says.
Legal/Regulatory:
Twitter global expansion increases sales, censorship challenges.<img src="http://feeds.feedburner.com/~r/marketingvox/rss/~4/Ug__zGNNX3Y" height="1" width="1"/>