• YouTube: Millions of videos are uploaded to YouTube every month, making it one of the largest video sites on the Web. Music videos, funny clips, even movies can be found here.
• Hulu: Hulu is a fantastically useful site with hundreds of high quality videos, TV channels, and full length movies to choose from.
• IMDB: The Internet Movie Database is the largest database of movie information on the Web. Actor information, movie trailers, movie quotes, etc. can all be found here.
• Clicker: Clicker aims to collect all the multitudes of online multimedia into one convenient place, making it easy for Web searchers to find what they're looking for, fast.
• Rotten Tomatoes: Rotten Tomatoes offers a wealth of information related to movies, including an extensive movie review database.

Vote for your favorite multimedia site!

According to the official Google blog, Google's "social" results (those from Facebook, Twitter, the social Web, etc.) will now be mixed in among "regular" search results (they were formerly only found at the bottom of the first page of search results).

These social search results will be based on relevance, so if you're looking for information on poodles and a friend of yours has recently posted their experience about working with poodles on their personal blog, then that particular result will show up in your top five results. In addition, if people in your social networking circle are sharing links, and that link shows up in your search results, you'll see a brief annotation under the link saying who has shared that link recently.

These results are not on by default. You have to actively sign into your Google Account in order to see social search content in your search engine results.

What do you think of this tweak? Do you think that Google is placing too much emphasis on the value of social search results, or do you think that Google is going the right way by making social search results just as authoritative as "regular" Web sites and reference sources? Give us your thoughts in the comments.

More about Google

• Five Ways to Access Google on the Mobile Web
• How to Make Google the Default Search Engine
• Find Blogs You Like with Google
• Google Search Statistics
• What is Google Custom Search?

Are you a fan? Join the conversation, ask questions, or just chat about the Web: About Web Search on Facebook.

• Wikipedia: Search for nearly any topic you can think of, and most likely, Wikipedia will have a thoughtfully researched entry for it.
• JustAnswer: JustAnswer is a useful question and answer site that connects experts from several different categories (law, cars, etc.) with Web searchers.
• TheFreeDictionary: Encyclopedias, thesaurus, several different types of dictionaries, it's all here.
• About.com: About.com is one of the oldest and widely used reference sites on the Web, offering expertly guided topic sites in a wide range of categories.
• Wolfram Alpha: Wolfram Alpha has gained many loyal followers with its quick answers to extremely complicated questions.

Vote for your favorite reference site!

Need a quick answer from a multitude of sources? You might want to check out Mashpedia, an encyclopedic search tool that grabs input from a variety of online content resources, including real-time results. For example, a search for oatmeal brought back videos, recipes, and nutritional breakdowns. A search for Iceland retrieved demographic information, along with Twitter chatter, a Wikipedia entry,and various blog posts. Mashpedia is aimed at collating evergreen content with the newest additions the Web can bring us; personally, I find Twitter chat more of a distraction than an actual reputable source, but for more recent searches, like the iPhone, it could actually end up being quite valuable. Wishlist: the ability to move the different content modules around, a customized RSS feed of sources on any subject, and perhaps a notebook in the sidebar to keep track of interesting searches.

More research resources on the Web

• Get Help With Research Topics
• Find the Best Reference Sites on the Web
• Wikipedia Alternatives - 47 Websites You Can Use Instead of Wikipedia

What's your favorite reference site? Cast Your Vote in the Readers' Choice Awards!