Reputable agencies don't increase the amount a client spends on paid-search campaigns for three months just to make an extra buck or two for managing paid-search accounts, explains Kayla Kurtz. She has put together a short list of six reasons why a pay-for-performance model to manage accounts doesn't work, and what brands should look for instead. Read the article here.

Previous Google search reports showed paid and organic campaigns separately. Now the tech company has combined the two to help advertisers see where they can improve performance. It shows how specific paid-search keywords perform in organic listings, and allows marketers to compare the performance for each query when an ad, organic listing, or both appear in the search results page generated by a query. The goal is to help marketers discover additional keywords, optimize the presence of high-value terms, and measure changes across paid and organic search campaigns.

A video on Bing helps marketers understand how image search on the engine works. Aside from learning intent with help from Microsoft's database Santori, Bing uses computer vision to detect skin tones, faces and gender to understand the image in the picture. Meenaz Merchant and Stefan Weitz explain the techniques that Bing uses to improve the quality of image search. Weitz tells us the engine sees 300 million photos daily from Facebook alone.

Zina Kayyali explains why marketers may want to stack bids and run different match types for the same keyword simultaneously, paying less. Kayyali defines the term "stacked bidding," and demonstrates in a sample campaign how the word "keyword" in Broad Match- and Phrase Match-type campaigns works without spending more money on queries that needed. Read the article here.

An email went out recently to third-party Android developers explaining a significant change to its Google Play Developer Program Policies affecting apps and the advertising practices, reports Emil Protalinski. All apps and updates published from now are immediately subject to the latest version of the Program Policy. Developers have been given 30 days from receiving the email to comply or risk the removal from Google Play. Protalinski explains.

Microsoft has integrated Bing shopping into for products searches in the main results page. The results, based on intent, will serve the best matches. For purchasing the product, Bing provides two options complete with pricing and availability directly from the merchant. It will appear in the search results in what Microsoft calls Rich Captions. Bing also will display it through product ads with photos and pricing.

Rich Bowen tells us about a paid shopping ad unit that Bing engineers are working on that will appear in search results, similar to Google Product Listing Ads (PLAs). He explains that when Microsoft rolls out the new product search ad, it will replace Bing Shopping. Bing will offer both free and paid solutions to promote products on the Yahoo Bing Network search result pages. The platform will offer this through Rich Captions and Product Ads.

Remember when Google invested in Himax Display, a Taiwanese chip maker that manufactures components used in the wearable device? Now the company has bought contract manufacturer Foxconn's Hon Hai Precision Industry display patent portfolio to ramp up development of Google Glass. Hon Hai, a supplier for Apple and other top IT brands, sold a portfolio of Head Mounted Display (HMD) patents, the company said in a news release on Friday.

FinancesOnline.com and Ruby Media put together an infographic showing where Apple iPhone's components come from. The OEM typically does not disclose details, making some of the information about its production a guess at best. The infographic is based on sourcing articles from Alliance of American Manufacturing, ChosunIlbo.com, Cnet, and The New York Times. The conclusion points to speed rather than building it for less money. 

Jacob Fairclough shows us how to use AdWords Campaign Experiments (ACE), which he calls a much overlooked AdWords feature. It allows marketers to test structural changes, bid changes, new keywords, or modify events within campaigns. Fairclough details how to get started by determining the ratio of the split test, what marketers should test, and the length of the experiment. Read the article here.