Below is what happened in search today, as reported on Search Engine Land and from other places across the web. From Search Engine Land: Twitter Says Activity Levels Are Soaring With the five-year anniversary of the first tweet approaching, Twitter says user activity is soaring

With the five-year anniversary of the first tweet approaching, Twitter says user activity is soaring.

“Alam Ara” (which means “The Light of the World”) was the first movie featuring sound in India’s history, but no original prints of the film have survived to present day due to a fire. It debuted March 14, 1931 in Bombay, and to celebrate the 80th anniversary of the movie, Google India has posted a “Alam Ara” movie theater-themed Doodle: Click to read the rest of this post…

There are three key reasons why you should go to SES New York 2011 , which will be held March 21-25 at the Hilton New York. Attending the leading search and social marketing event will help you and your organization (1) keep up-to-date with industry trends, (2) see new products and services, and (3) maintain and build relationships. Click to read the rest of this post…

The Google Farmer/Panda update hit and 40% said they were impacted by the update. We documented advice on how to fix the issue, if you were one of the sites impacted by this update…

Google is adding Instant Previews for Videos . Instant Previews for videos have the same appearance as regular Instant Previews — the selected clip is highlighted in blue and a clickable magnifying glass appears next to the title of the video. But rather than see a preview page of a website, you’ll see four short playable clips from a video.

Beverly Stayart is now 0-3 trying to sue search engines for vanity search results. Last week her case against Google for the search suggestion [bev stayart levitra] was dismissed in U.S.

If SEO is your thing, Sphinn was a good place to be last week. Almost all of the most popular stories on our sister site had something to do with SEO. At the top of the list is our “Discussion of the Week,” which asked what’s The Most Underrated SEO Tactic?

In January we asked if Google has a whitelist for their search engine.

No, you’re not seeing double from last week. I wanted to extend the theme Bryson initiated in his column last week, titled “Why Mobile-Friendly is Not Mobile SEO,” in response to Google’s recent change in its position towards mobile content.