Many forms of violent extremism occur throughout the world. So in Dublin, Google brought together former gang members, right-wing extremists, jihadists, and militants, along with survivors of extremist violence, for three days of discussion, debate and workshops. While Jared Cohen explains how participants will work with anti-extremist groups who have an inside view of why these radical solutions appeal to young people, some think Google employees who need to know why a 13-year-old boy in a tough neighborhood in South Central L.A. joins a gang should speak with local law enforcement such as the Los Angeles Police Department or detectives …

Jessica Rooney runs keyword reports frequently just to experience the "Internet's human unpredictability." She calls it "a beautiful thing" because unexpected search queries help her see the spectrum of humanity sitting at the edge of a keyboard. Sometimes search marketers need to be reminded that these queries are the needs, the interests, and the desires of people searching for products, services, and information. Rooney serves up tips on what search marketers should keep in mind when plotting out keyword lists and campaigns.

Sixty-seven percent of U.S. consumers use a search engine to find information about local businesses, according to eMarketer, which cites research from the Local Search Association. The research provides insight on frequency of use, age demographics, and preferences when it comes to location, as well as whether anyone still uses the printed edition of Yellow Pages.

Google has suspended downloads of paid apps on the Android Market after receiving a warning and paying a fine to the Taipei City Government earlier this month. Apple Asia had received the same warning, but complied before the deadline and amended its refund policy. The post describes the issues and links to a post from government officials.

Knowing how to increase a campaign's quality score in AdWords could influence performance and give it a boost, Ron Jones writes. Google assigns scores to reward advertising providing the best experience to searchers, he explains. Quality scores are determined by click-through rate, ad relevance, and landing page. So Jones tells us how to structure campaigns in smaller ad groups, determine quality score factors, and decrease landing page load times.

Marketers should not get discouraged if conversions grow more slowly than traffic on new sites when going through the normal "organic" growth patterns. Eric Enge explains why this might occur for sites without the benefit of a large media push or well-known brand by providing charts and examples of conversions over time.

Although no official announcement has been made, SEO experts have taken notice of the rollout of Panda 2.2, which some say will address the issue of scraper sites -- Web sites that republish and make money off other site's content. Since marketers want to know how they can modify practices, Rand Fishkin explains how the Panda updates work and how this has fundamentally changed SEO best practices.

Igor Belogolovsky guides us through a 30-minute search engine marketing audit. He serves up a "laundry list" of best practices to help marketers keep a clean house and take advantage of relatively low-effort opportunities. Belogolovsky explains that marketers should understand the reasons behind knowing the percentage of conversions coming from exact match terms, quantity of bids on competitors' brand names, and if account structures have been optimized to improve quality scores.

When it comes to email marketing, timing can either make or break a campaign. Jason Caldwell tells us that data suggests there are specific windows to send emails to achieve the highest open rate. A list of facts and stats to tweet at the end of the post reveals stats such as that consumer promotion emails are best sent between 7 p.m. and 10 p.m., and email open rates and click rates are highest in the early morning during all days of the week, with the weekend the highest.

Jessica discuss subtotals, describing this as a "powerful" yet "useful function," used across multiple data types. It's the third installment in this week's series explaining how marketers can tap into Excel to help boost paid-search performance. Supported by screen shots, Jessica provides tips on how to combine reporting from AdWords and Google Analytics with Excel to analyze relevant data and boost paid-search results.