Specialized Websites

Computational knowledge engine that draws on multiple sources to answer user queries directly.

Search Internet Relay Chat rooms and networks.

A business information search engine, providing company search, people search and job search. It constructs profiles on people and companies, drawn from the Web, or created by individuals and companies for themselves.

Powered by Nutch, it searches for content which can be re-used (for some uses) without having to pay or ask permission.

Global accountancy search engine, provides industry articles, guidelines and management tools.

Green Search Engine which provides environmentally aware results, includes news and products.

Search engine for Request For Comments (RFC). Also organized according to topic.

Finds personal photos, videos, and other information across social media platforms.

Searches for profiles on social networking sites by e-mail, first, last name and username.

Free people search, for U.S. postal addresses and telephone numbers.

Searches for names and usernames across a variety of social networking sites and even among Wikipedia editors, registers users of SourceForge, Launchpad and My Opera. Searching can be refined by location and age.

Searches sites by domain name, title, keywords and IP address.

A search engine for finding data and statistics. The search results will be graphs, charts and tables.

Helps to find similar, related, or alternative websites. Based on user generated tags.

Search engine for US and European patents. Results from several sources are merged in a single list or in clusters. Order by relevance or date.

SkillPages is creating new opportunities for everyone everywhere.

Searches various applications, including del.icio.us, flickr, Scribd, YouTube, for tags.

Collaborative fashion content search engine, indexes selected fashion blogs and online magazines.

Search for RSS, Rdf and Atom feeds or search the feeds.

Search for computers based on software, geography, operating system, IP address. For example, it can find servers running Apache 2.2.3 on Windows 2000 in Switzerland.

Find the alternatives to a broad range of subjects.

Finds active web servers and receives whatever information those servers disclose. Some of the features require free registration.

Search for recipes by ingredient, diet, allergy, nutrition, taste, calories, fat, price, cuisine, time, course and source.

Search with Google without getting results from Google sites such as Knol, Blogger and YouTube.

Finds documents in .pdf, .doc, .ppt, .xls, .rtf and html format. Requires registration.

Combines results from several sources to present the latest user-generated content. Its "buzz-o-meter" measures the current level of activity concerning the topic on Twitter.

Searches for recipes by ingredients, title, celebrity chefs.

Searches for mobile-friendly websites by keyword or category.

A service to check papers for passages plagiarized from the web.

Indexes video files that can be embedded and makes them available to publishers and website owners.

A code specific search engine. API documentation, code snippets and open-source repositories are indexed and searchable.

Searchable grants database and assistance programs for individuals.

A color search engine meant to find items in defined colors.

Grabs and lists image content and information from websites with filtering options. It also offers downloading of grabbed images and social network sharing of grabbed images.

Dead people search engine. Search by name, year or social security number (reverse lookup).

Finds alternatives to popular websites.

Facebook search without logging in. Finds images, pages, posts by keywords.

Alternatives to software applications are organized into categories and can also be searched according to platforms and tags.

A search engine for finding similar and alternatives websites. Works on a dataset of about 200 million sites.

Searches within HTML source code and http headers. Free demo requires registration.

Presents a search results page from which relevant results can easily be selected then browsed sequentially without opening new tabs or windows.

Tracks the latest popular content on the web: Facebook, Twitter etc.

Helps to find similar or alternative websites.

Helps users find new alternatives or similar content.

Offers services that include general people searches, criminal background checks, real property, death and marriage.

Allows users to perform free white page type searches as well as reverse address, phone and area code lookups.