SILICON ALLEY INSIDER — Two days ago I wrote about Quora. I’ve been loving the product even if it sucks up some of my time. I prefer my time go into a very focused Q&A website than into a more generic Facebook. What Quora has done is wrap social networking around Q&A with the more clever next-gen UX I’ve seen. But my post today is not about Quora, it’s about an answer that I wrote on Quora. I stumbled upon the Question, "What is the motivation behind writing public reviews and tips as on Amazon Yelp Foursquare StickyBits etc" and took the bait. I wrote the following answer...

HUBSPOT INBOUND INTERNET MARKETING BLOG — Facebook has delivered a major blow to not Foursquare and other location-based social networks, but to Google and Yelp. The social network has announced the launch of a major new feature: Facebook Places. We have talked many times about the adoption and marketing implications of location-based social networks on this blog in the past. However, this trend just got a lot more interesting for marketers...

READWRITEWEB — There's a very interesting question over on Q&A site Quora.com regarding last night's announcement of Facebook's geo-location effort, Facebook Places. Someone asked the question: "Are Foursquare and Gowalla going to survive now that Facebook Places has launched?" This question was on the forefront of our minds, too, as we watched the somewhat-reluctant partners trotted out in support of Places during Facebook's press briefing last night...

CLICKZ — Domino's credits Facebook and Foursquare promotions for lifting online sales by 61 percent in the U.K. and Ireland during the first half of this year compared to the same period in 2009. The international pizza chain also announced on Monday that web-based sales now account for 33 percent of its revenue, compared to 26 percent in 2009. "Anything that helps to drive people to our online ordering page is always going to help drive sales," said Georgina Wald, spokesperson for the London-based division. "So when we use social media, we make sure there are plenty of ways to quickly get to the ordering site." Domino's leverages a corporate Facebook page with 37,000 fans/"People Like This" for national campaigns. Similar to user rewards programs like Foursquare's mayor system and Yelp's dukes and duchesses, the pizza brand has an ongoing "Superfan" promotion...

CLICKZ — While some pundits are saying that Yelp and Foursquare are at war, it's actually starting to look more like a copycat fight. Each firm's most recent move represents an idea the other has already executed. On Monday, San Francisco-based Yelp announced via its blog that marketers with a presence on its site can now utilize a "check-ins" statistic. The stat will allow businesses to measure how often Yelp smartphone app users physically visit them. Since users must take a moment to check-in at a location while employing the app, it should give those marketers a sense of how important - or unimportant - the restaurants-oriented social site is to their patrons...