Press+ announced yesterday that they’re launching a new time-based metered paywall for online videos, in an effort to help online publishers monetize video, a content type likely to see the most revenue growth in the near future.The new software would allow site visitors to preview a video for a certain length of time before asking them to pay (either single payment, package deals or subscriptions).Press+’s first client for the new software is Courtroom View Network, an online subscription site that streams courtroom trials and provides legal news and information to attorneys, legal professionals, industry analysts, and educational institutions.However, many news sites, like The New York Times, have opted to make their video free because of the high support video gets for online advertising.So, will a time-based meter for online video work?Yes, but it depends on your content and your audience.Courtroom View Network will likely see success because 1) their extensive coverage is not available everywhere, 2) their content is available on multiple devices (a common request for video subscribers), and 3) they are catering to a target market that cannot do their jobs without this information.News sites, on the other hand, do not have the advantage of a B2B audience. Sometimes their content is original, but often it’s formatted as brief documentary-like reports, for which audiences are happy to view when free, but would be hard-pressed to pay.Clearly, the success of Netflix and JTS.tv indicate that there is a way to monetize online video through subscription. But only if the content is original and targeted to the right audience.Also, there’s the question of how to let audiences sample your content. Popular Science found that a trial of their iPad app was not as successful as a sample issue. In a similar vein, some videos sites may find that a movie-like trailor for original, lengthy content is better than a preview of the first five minutes.