We’ve written about Greplin a couple of times – once after the service launched, and again last week, when the company sent users an email with some new updates. If you’re unfamiliar with the service, the best way to describe it is truly personalized search. 

Bing has started testing new personalized search features, aimed at making individual search results more effective. "Personalized search is not new, but Bing is taking a different approach, focused on the type of search a person is doing and understanding more about what that person is likely searching for," a spokesperson for Bing tells WebProNews. "As no two people have the exact same search behavior, Bing has taken the extra step to automatically tailor search results."

I recently wrote a lengthy post about how content is flooding the web, and it’s becoming increasingly difficult for any one search engine (including Google) to keep up and deliver the best possible results at all times. Google does a great job for a lot of queries, but the company knows it needs to get better. That’s why they’re putting a new focus on content farms. 

There’s a new kind of personalized, social search available that may trump any effort we’ve seen from Google to date in this corner of search.

Greplin is a new site that searches through "all your online data in one place, really fast" – or at least your the online data you have in the services that it supports, which is likely far from all of your online data. Still, the concept behind the site is pretty noteworthy, and it will likely add more services as time goes on.

Not everybody is a fan of the increasingly personalized search results they get from Google. Some criticize them as a way for Google to give advertisers reasons to rely on PPC as opposed to the less predictable organic results, and others just find it disruptive to relevance.

Let me start off by saying that I have no problem with my search results being personalized, because I understand that search engines want to deliver the best user experience so that users will keep using them. If I get results that are personalized well, that means I don’t have to look too far for what I’m trying to find. However, not all users are so thrilled with the evolution of search results pages, particularly with the personalization aspect.

Google today introduced yet another way it is personalizing search results (we talked about social search with the company at SMX). Now Google is letting users "star" search results that they like, just like the star feature in other Google products like Gmail, Reader, and Google News.

The search engine landscape is ever changing. We covered that. However, while there are multiple players involved in facilitating that change, there is one that drives it far more than the rest of the competition. Obviously, we’re talking about Google.