Brightcove’s blog today has some interesting findings from an online video research study they did with Tubemogul.

They analyzed Q1 performance in online video from 2009 and 2010 and summarized their findings as such:

• Online video views has grown dramatically: 40 percent for broadcast media networks. 300 percent for web-based media networks. Spike is attributable to newspapers (37% jump) and magazines (70%)
• Online video production has grown dramatically: Newspapers (up 190%), magazines (up 60%), music labels (up 64%), radio (up 62%).
• Engagement levels vary by media type: Average length of viewing stream (in minutes:seconds) by media type broadcast networks (2:53), music labels (1:50), and newspapers (1:41).
• Completion rates vary by media type: Percentage of people by media type who finish watching videos – newspapers (41%), magazines (39%), broadcasters (38%), and music labels (29%).
• Twitter referrals create the highest level of engagement (longest viewing times): Broadcast networks (1:52), magazine publishers (1:23), and music labels (2:33). The exception is newspaper publishers, which see the highest level of engagement from viewers who find their content via Yahoo! (1:20).

Lastly, Brightcove claims that the majority of publishers in their study plan to launch ad-supported mobile video within the next 6-12 months.