Though it is rare, this is not the first time that Google has advertised its products on the valuable ad space of its home page, which 183 million people see every month.
A more valuable ad product could help bring these numbers back up. .
Last time an ad popped up here John Gruber called it "the most valuable ad space on the entire Internet".
But getting people to share more through apps also increases developer loyalty and gives Facebook valuable ad targeting data about what people do, not just what they Like.
As long as the information is not attributed to a specific person's name, the publishers group thinks it should not have to obtain personal consent and that such a restriction would cut off users' access to valuable ad messages.
The reason Snapchat geofilters are an increasingly valuable ad unit is because everyday folks can play on the same level as big brands, generating longer and more attentive eyeballs than other ads.
Because Google.com is usually ad-free and not for sale to others, it's always notable when Google decides to take advantage of the most valuable ad space on the Internet for itself.
They could simply identify the most valuable ad to send a detective-fiction enthusiast as he or she is clicking around, say, the Huffingtonpost.com, then slap the ad onto the popular blog's pages in exchange for a cut of the ad revenue.
In theory, the percentage of "views" or "opens" for television versus Snapchat could be similar, but I'd argue that Snapchat is a more valuable ad impressions mechanism because you know the user is staring at his or her screen while the ad is playing.
