Which search engine when? Site based information search engines

Which search engine when?

Site based information

Some search engines will provide you with the opportunity to find out more about a particular website, such as who owns it, how long it has been in existance and so on. You'll also find that some engines will help you find other sites or pages based on one that you already know.

Comparing results from different engines
These search engines will run searches for you across a number of different engines (like multi search engines) but they point out the relative positions of results.

GrabAll allows users to compare any 2 of 8 search engines
Scour displays results from GYM with relative positions
SearchBoth for comparisions of major search engines and info resources. 8 major engines to choose from.
Soovle provides suggestions from Google, Ask, Amazon, Wikipedia, Yahoo, Answers
Thumbshots Ranking compares results from Google, Yahoo, Alltheweb, AltaVista, MSN, Teoma, Wisenut.
TripleMe compares results from the big 3 on one screen
TurboScout allows you to type in the search once, then run it across 23 different search engines.
Viewzi offers a visual GYMA set of results
WebFetch Allows users to rank by search engine

Re-ranking search engines
Some search engines will allow you to re-rank search results yourself. They're rather thin on the ground however, and have limited functionality.

Exalead Advanced re-ranks by date
Scour allows you to re-rank by search engine
Google Personalized will re-rank based on your interests automatically if you're logged into the search engine

Site information
Getting information about a site is much easier than you might imagine. Lots of search engines provide access to a wealth of information in this area.

Ajaxwhois Great for site statistics searches
Alexa provides traffic details and related sites
Better Whois shows ownership for top level domains
Compete to track various sites - really for optimization though
Popuri.us to check link popularity of any site on many factors.
Quarkbase - everything about a website
Statbrain tells you how many visitors a site has. Perhaps.
Walk2web links to the site and the sites that one links to
The Wayback machine may be able to show you an archived version of a site
Websiteoutlook for how much a site is worth, pageviews etc
Yahoo site explorer for useful stuff

Similar sites
If you can find one site that provides you with information that you need, you'll be able to find others using these search engines.

InSuggest is smooth and elegant
Similar Site search finds similar sites
Similio.us may have died (Feb 2010)
Siteslike to tag, rate and share similar websites
Tastekid Music, sites, books, everything!
Wectar for related sites via Delicious
Who is like it? Type in a URL and see similar sites