Real Time search has been a major focus of many startups and search giants such as Bing and Google. Twitter, Facebook, blogs, Podcasts, YouTube Videos, and Flickr all have taken the user generated content to a whole new level. This has put a lot of pressure on the search engine giants to efficiently track/index content for their users. But, the rate of content generation is so overwhelming that real-time social search engines make more sense than the traditional methods of searching for information.

Besides, Google and Bing who have integrated social search concept, there are lots of startups who have invested their resources in leading the way for new paradigm of search. Here are the top 10 search engines for especially Twitter, that are making their way to the future.

Twitterment http://www.twitterment.com/

Twitterment is a simple search, not exactly real time, and is powered by Google. It basically digs into all the public tweets made in Twitter and brings the relevant content related to the search keyword.

Search Twitter http://search.twitter.com/

Twitter Search is the foundation of all the search engines being developed. Its advance search allows users to customize their queries to find relevant information in the Twittersphere. It is still the most used search engine relating to Twitter.

Twitscoop http://www.twitscoop.com/

Twitscoop allows you to view real-time trends in the Twittersphere via its dynamic tag cloud. You can also search for the keywords in Twitter and receive click statuses if their being shortened by bit.ly. It is very similar to Twitter’s default search.

Topsy http://topsy.com/

Topsy is one of the few search engines which have brought more than just search results, because it stores all the data from Twitter and segments it into the most tweeted and least tweeted tweets. It also shows the list of contributors along with their influence ratio. Furthermore, Topsy allows you to search for tweets based on domains and bring the most tweeted page from that domain. Topsy is one of the most useful and value added, Twitter powered search engines.

Oneriot http://www.oneriot.com/

OneRiot is the closest search engine to the realtime concept. OneRiot crawls the links people share on Twitter, Digg and other social sharing services, and then indexes the content on those pages in seconds. The end result is a search experience that allows users to find the freshest, and most socially-relevant content from across the realtime web.

Twazzup http://www.twazzup.com/

Twazzup is an interesting search engine that tries to bridge the gap between Twitter’s real-time search and more traditional search engines. On Twazzup, you can follow a real-time stream of updates including a selected keyword on one side, while the other side shows the top tweets and a list of the top tweeted stories in regards to a given topic – plus related photos from twitpic.

Scoopler http://www.scoopler.com/

Scoopler is a real-time search engine that aggregates and organizes content being shared on the internet as it happens, like eye-witness reports of breaking news, photos/videos from big events, and links to the hottest memes of the day. It constantly indexes live updates from services including Twitter, Flickr, Digg, Delicious and others.

Collecta http://collecta.com/

Collecta provides similar content like the rest but with a major difference. It also digs into social sites for information but it allows users to focus their search by choosing between stories, comments, updates, photos and videos. Collecta allows them to track brands more efficiently than most of the others.

Twellow http://www.twellow.com/

Twellow is obviously based on Yellow pages with all the information being categorized in variety of sections. By adding people to specific categories Twellow helps you narrow your searching into specific niches where you can find who you are looking for.

Buzzom http://www.buzzom.com/

Buzzom is a promising player in social media which provides a simple way to search people in Twitter. Buzzom search allows you to search people with respect to bio, name, location and tweets. Unlike other search engines which are focused on content, Buzzom’s search provides users with results relevant to people.