webmercial 

a commercial on the web, a commercial online

i have a webmercial, it is pretty cool check it out.

webmercial by osbert bulze April 18, 2010

Webercial 

A commercial or video advertisement specifically for use on the web. It could be posted to a corporate website or distributed via social media channels.

1. I really wish we had a video advertisement on our website.

2. Why don't we make a webercial?

Webercial by Altamont Productions March 5, 2013

webfomercial 

Similar to an infomercial on TV, but is conveyed via a webinar craftily disguised as "this is how you do this" but in reality the presenter keeps dropping subtle hints to get you to buy their product.

The webinar I watched on how to virtualize the servers turned out to be a webfomercial trying to get me to buy xzy virtualization software. There was really no how-to involved.

webfomercial by hptechnician November 7, 2011