Gigablast is a search engine with over 2 billion pages in its index. Gigablast offers fast service, relevant search query results, and a couple of pretty cool extra search features that are well worth your time. Registration not required.
Ask.com is a crawler-based search engine with lots of features. The Ask.com search technology uses semantic and extraction capabilities to recognize the best answer from within a sea of relevant pages. Ask uses click-through behavior to determine a site's relevance. Registration not required.
HomepageSeek is a specialty search engine that started in 1999. This was a time when the internet was supposed to give the 'little guy' a better chance to compete. It didn't take long for the corporate domination to take over. Welcome to HomepageSeek, where the majority of search results are from the smaller sites on the internet. Let's face it, with so many sites being born every day there is a growing need for specialized search engines. Registration not required.