Video Format – This refers to the type of format of files that can be uploaded in YouTube. In most cases, it inclues avi, flv, mov, wmv and mp4 while most file formats are typically supported as well.

1080i – The current mode of HD (High Definition) television mode in which it is made up of 1,080 horizontal lines with an aspect ratio of 16:9. It is currently the most popular standard in the market and widely demanded by viewers. Meanwhile, 720 is the number used to represent 720 horizontal lines which is of lower video quality as compared to 1080. This however means that 720 require smaller file sizes which makes it easier and faster to load.

Ad Overlays – Refers to a semi-transparent (usually rectangular shaped) overlay that appears across the screen of the video. They can appear at any time and any place during the video playback.

Average view time – This refers to the average time a video ad is being played and seen by viewers.

Bit Rate – This term is used to depict the number of bits in a second of a specific video will use on average.

Broadband video commercial – This was one of the big buzz words in video advertising which refers to a commercial that will appear before, during or after a certain type of content. This could involve gaming, music video or streaming video and are usually 15 or 30 seconds long. This however has been improved in 2008 where it is now called ‘In-Stream Video’

Buffering – A term used to depict that a video is loading. It is actually a temporary holding place in memory for the data to be downloaded before playback so that it can be streamless.

Captions – This is the text that appears to be hovering on top of a video commonly used to narrate the dialogue of that video.

Click-through – This happens when the viewer clicks the hyperlink appearing in the advertisement that leads to another web page.

Cue Point – A point in a video defined to invoke certain events.

Infomercial – This is a type of advertisement used to provide information to the consumer to try and persuade and motivate towards purchase.

Short form video – Refers to videos that are not more than 5 minutes long. It can start from 20 seconds and go up to 3 minutes at average and are the most common forms of video content in YouTube.

Viewthrough – This is only possible through video advertising where it is used to measure when an entire duration of the ad is viewed

Viral Video – Video clips which have become so popular and circulated online through media like blogs, social networks and other applications.