by Mark Robertson of ReelSEO.com

With the incredible rapid growth that online video sharing and video search sites are realizing, more and more advertisers are pumping money into video advertising. According to the latest research, online video advertising revenues in the US are expected to reach $7.1 billion by 2012 which is a 72 percent compound annual growth rate for the next five years. In 2008, the projections are just shy of $1billion.

Due to the overwhelming demand from advertisers to develop effective methods for online video advertising delivery, some of the online video sharing giants have implemented various forms of online video ad formats. Historically, in-stream ads, also known as pre-roll ads, mid-roll, and post-roll, have been the dominant standard in terms of the format most advertisers gravitated towards due to the prominence of the ad content itself.

Pre-Roll Ads – In this format of advertising, the advertisement clip is inserted before the actual video and while playing the video, the advertisement clip is played first and the viewer is compelled to watch the advertisement before the start of the real video file.

Post-roll Ads – This format includes the advertisements at the end of the video clip and it is up to the viewer to decide whether to watch the advertisement clip or not. This format of advertisement is being used by certain video sites. However, this is not effective for the advertiser as often times users dont watch the entire video.

Mid-Roll Video Ads: Again, like the other in-stream ads, mid-roll streams a short video clip within the video player itself, only with mid-stream, the ad gets played in the middle of the video almost like a normal TV commercial. This seems to be somewhat less offensive to users.

Many of the video platforms have experimented with various differnent online video formats. One of these is in-player ads: In-player ads sometimes include relevant text or image advertisements in the space available in video player between the outer margin of the video and the inner margin of the video player.

Contextual in-video advertising seems to be the way of the future with many different sites attempting to match videos with advertisements that are most relevant to the subject matter. Users like this format more as well as it does not disturb the experience of watching the entire video. This quality of the format makes it one of the most promising advertising formats for the future and there are many diverse ways in which to serve either images, clips, or text ads.

One of the most popular version of contextual video advertising is that of what is known as the “overlay ad.” In this format, relevant textual ads are scrolled or displayed across a small portion of the video screen (usually the bottom). Users in particular prefer this format as it is relatively unobtrusive.

Although there are a few other formats that are being tested and utilized, the formats that I covered are the most commonly used formats at the moment. That being said, with the attention on this sector as it is, we will likely continue to see rapid innovation and will keep our eye out for the next best online video ad format.

About the Author:
This post was written by Mark Robertson, an expert in search engine marketing and internet video marketing. For more information, tips, and news for internet video advertising , visit ReelSEO.

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