Voted three times Most Outstanding Search Engine by Search Engine Watch readers, Google has a well-deserved reputation as the top choice for those searching the web. The crawler-based service provides both comprehensive coverage of the web along with great relevancy. It's highly recommended as a first stop in your hunt for whatever you are looking for.

AllTheWeb.com
http://www.alltheweb.com/

An excellent crawler-based search engine, All The Web provides both comprehensive coverage of the web and outstanding relevancy. If you tried Google and didn't find it, All The Web should probably be next on your list. Indeed, it's a first stop search engine, for some. In addition to web page results, AllTheWeb.com provides the ability to search for news stories, pictures, video clips, MP3s and FTP files.

Yahoo
http://www.yahoo.com/

If Yahoo is now powered by Google, then why bother using it? For one thing, you might find that the way Yahoo "enhances" Google's listings with information from its own directory.

MSN Search
http://search.msn.com/

Microsoft is known for constantly reworking its software products until they get them right, and MSN Search is a shining example of the company putting that same effort into an online product. In particular, the company has its own team of editors that monitors the most popular searches being performed and then hand-picks sites that are believed to be the most relevant. After performing a search, "Popular Topics" shown below the search box on the results page are also suggestions built largely by editors to guide you into making a more refined search. When appropriate, search results may also feature links to encyclopedia content from Microsoft Encarta or news headlines, at the top of the page.
Of course, humans editors can't do everything, so MSN Search also relies on search providers for answers to many of its queries. Usually, it will be human-powered results from the LookSmart directory that dominate the page. Unlike when MSN editors are involved, these human-powered results are not hand-picked to match a query. Instead, MSN uses its own search algorithm to sift through all the listings from LookSmart to automatically find answers that are believed to be best.

AOL Search
http://aolsearch.aol.com/

AOL Search provides users with editorial listings that come Google's crawler-based index. Indeed, the same search on Google and AOL Search will come up with very similar matches. So, why would you use AOL Search? Primarily because you are an AOL user. The "internal" version of AOL Search provides links to content only available within the AOL online service. In this way, you can search AOL and the entire web at the same time. The "external" version lacks these links. Why wouldn't you use AOL Search? If you like Google, many of Google's features such as "cached" pages are not offered by AOL Search.

Ask Jeeves
http://www.askjeeves.com/

Ask Jeeves initially gained fame in 1998 and 1999 as being the "natural language" search engine that let you search by asking questions and responded with what seemed to be the right answer to everything.
In reality, technology wasn't what made Ask Jeeves perform so well. Behind the scenes, the company at one point had about 100 editors who monitored search logs. They then went out onto the web and located what seemed to be the best sites to match the most popular queries.
Today, Ask Jeeves instead depends on crawler-based technology to provide results to its users. These results come from the Teoma search engine that it owns.
Ask Jeeves also owns the Direct Hit service, but results from Direct Hit are no longer offered to the public directly through the Direct Hit site.

HotBot
http://www.hotbot.com/

The "4-in-1" option at HotBot was introduced in December 2002. However, HotBot has a long history as a search brand before this date.
HotBot debuted in May 1996, it gained a strong following among serious searchers for the quality and comprehensiveness of its crawler-based results, which were provided by Inktomi, at the time. It also caught the attention of experienced web users and techies, especially for the unusual colors and interface it continues to sport today.
HotBot gained more notoriety when it switched over to using Direct Hit's "clickthrough" results for its main listings in 1999. Direct Hit was then one of the "hot" search engines that had recently appeared. Unfortunately, the quality of Direct Hit's results couldn't match those of another "hot" player that had debuted at the same time, Google. HotBot's popularity began to drop.
Even worse, HotBot also suffered by being owned by Lycos (now Terra Lycos). Lycos had acquired HotBot when it purchased Wired Digital in October 1998. Lycos failed to make search a priority on its flagship Lycos site as well as HotBot through much of 1999 and 2000, as it focused instead on adding "portal" features. The company refocused on search in late 2001, making significant improvements to the Lycos site and, as noted, reworked the HotBot site at the end of 2002.

Lycos
http://www.lycos.com/

Lycos is one of the oldest search engines on the web, launched in 1994. It ceased crawling the web for its own listings in April 1999 and instead uses crawler-based results provided by AllTheWeb (see above). So why bother with Lycos rather than using the AllTheWeb.com site? You might like some of the features that Lycos provides.
"Fast Forward" lets you see search results in one side of your screen and the actual pages listed in another. Relevant categories of human-compiled information from the Open Directory appear at the bottom of the search results page. At the top of the page, Lycos will suggest other searches related to your original topic right under the search box. Perhaps you might even like the look and feel better! Whatever the reason, under the hood, Lycos provides all the same relevancy and comprehensiveness you'll find at AllTheWeb.com.
Lycos is owned by Terra Lycos, a company formed with Lycos and Terra Networks merged in October 2000. Terra Lycos also owns the HotBot search engine described above.