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What Are Private Marketplaces?

A private marketplace is an invite-only programmatic auction. A publisher sets aside certain inventory, or a group of publishers pool inventory they’ve set aside, and grants approval to certain buyers who can bid on it. In theory, PMPs were created to combine the most appealing elements of direct sales and…

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What Is Server-to-Server?

Before we talk about server-to-server (or S2S, or server-side bidding, or whatever you want to call it), we have to talk about header bidding. Header bidding allows publishers to solicit bids on all their inventory from a select group of demand partners in a unified auction, just by putting the…

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What Is Blockchain?

Blockchain is commonly referred to as a ledger—a shared, decentralized database, made up of so-called “blocks,” which are just hashed records of transactions. In each block, which is permanent and can’t be altered after it’s logged, you have a timestamp and a link to an earlier block. That gives participants…

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What Is a Cookie?

Call it a browser cookie, a web cookie, an HTTP cookie—it’s all the same thing, just a small text file, not even executable code. A cookie takes the form of a name-value pair (e.g. name=value). Originally designed to recall information like logins, form data and shopping cart contents, they’ve been…

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What Is Header Bidding?

Header bidding is a way for publishers to solicit real-time bids from a multitude of programmatic partners on each and every piece of inventory by using the page header within a site's source code. Basically, it’s a convoluted way to bypass the ad server waterfall and ensure inventory is valued…

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What Is the Waterfall?

You may hear a lot these days (particularly on a header-cheerleading site like this one) about the ad-server waterfall being vanquished like some fairy-tale villain. Well, it’s not entirely gone, and similar to many foes in children’s stories, it wasn’t always such a bad thing—it was simply exploited. In the…

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What Is Yield Management?

Yield management is a slippery topic to explain, and even more complicated in practice. Rather than explain how it works, it’s probably more helpful to explain what it does. Well… what it’s supposed to do, in theory. First, the problem that yield management aims to solve for publishers: The total…

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What Is VPPA?

Publishers that deal with a lot of video content will likely be able to tell you a little about the Video Privacy Protection Act (VPPA). Particularly, they’ll be able to tell you about the numerous hoops it causes video-heavy ops teams to jump through. VPPA holds that a user’s viewing…

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What Is VPAID?

The Video Ad Serving Template (VAST) standard was created to allow ad servers to communicate with video players. Before VAST was on the scene, ad creative had to be coded specifically to work with each proprietary player the advertiser wanted it to work with. The VAST Decoder explains more fully…

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What Is Deal ID?

If you’re working on executing a preferred deal in the programmatic market, there’s a pretty strong chance a Deal ID will play a big part in making it happen. Without Deal IDs, it’s hard to imagine private marketplaces being able to scale the way they have. With a PMP, you…

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