I helped brand and launch Mashable Studios (which would eventually become Mashable Brand X), and while we built the team internally we also spent a lot of time selling ourselves and our capabilities externally. Here are a few sizzle reels we made to do so, initially for NewFronts.
Mashable Studios Programming Reel
Mashable Studios Branded Content Reel
Mashable Dot Com Sizzle Reel
CW: Scott Muska / Ryan Katon
Mashable Velocity Explainer