Twitter has made several changes to its main search results feature focusing on people's accounts mixed with search results and photos as search results, and a new photo tab joins the results and the people filters. See the tweet here.

Alistair Dent gives us some tips on writing product listing ads that contain specific parameters aimed at pulling in the values from the Google Spreadsheets document. He explains how the marketer can force regular text ads -- non-PLAs -- to include prices, discounts, previous prices, and more. It's about turning text ads into PLAs. Read the article here.

Sean Quadlin spoke with a small business owner who brought up some interesting points about product listing ads. While the ads work great for larger ecommerce sites, it's a bit challenging for the smaller ones. The insight focuses on repeat PLA clickers, especially five times in one minute. Most of the clicks occur because people compare prices and features. What can the retailer do? Read the article here.

We all know it happens. Web site speed impacts search engine rankings. Mark Isham explains. He talks about page load times, time to interaction, page size, and image content. Google relies on many factors to determine how to rank search engine results. The back-end and the front-end performance of a Web site are just two factors that directly correlate to search engine ranking. Read the article here.

Produce irresistible content and consumers will share. That's what marketing experts say. The concept seems sound in theory, but it's never a recipe to guarantee success. Tessa Wegert offers up guidelines that can help. She explains how to make powerful content from video, and suggests revisiting popular concepts and seeding each video through brand advocates. Read the article here.