Dive summary: 

• Original planned to launch in July, Facebook video ads are being pushed back and will likely launch in October 2013, a source says. 
• The reported reasoning for the delay is that Facebook wants to launch certain features concurrently with the video ads and those features still need software development. 
• The Facebook sales team is eager to ship the product they have been pushing for months; they have advertisers ready and want the new features to be upgrades later. 

From the article: 

"Earlier this spring, the social network had been busily shopping the ads around to agencies, looking to secure commitments for a July launch. The pitch centered around TV-like reach, and the asking price was into seven figures to secure a day-long 'slot' targeting huge demographic swaths, like all men or women between 18 and 34, or even all Facebook users in the U.S. who signed into the service on that particular day."