If you are using my JavaScript plugin – Customising the SEO list for Google Analytics, this is the current list of 264 regional search engines and domains that it adds to your reports (for comparison, the GA default = 40)
Updated 27-June-2011:
//Google domains
google.ac // Ascension Island
google.ad // Andorra
google.ae // United Arab Emirates
google.com.af // Afghanistan
google.com.ag // Antigua and Barbuda
google.com.ai // Anguilla
google.am // Armenia
google.it.ao // Angola
google.com.ar // Argentina
google.as // American Samoa
google.at // Austria
google.com.au // Australia
google.az // Azerbaijan
google.ba // Bosnia and Herzegovina
google.com.bd // Bangladesh
google.be // Belgium
google.bf // Burkina Faso
google.bg // Bulgaria
google.com.bh // Bahrain
google.bi // Burundi
google.bj // Benin
google.com.bn // Brunei
google.com.bo // Bolivia
google.com.br // Brazil
google.bs // Bahamas
google.co.bw // Botswana
google.com.by // Belarus
google.com.bz // Belize
google.ca // Canada
google.cc // Cocos (Keeling) Islands
google.cd // Democratic Republic of the Congo
google.cf // Central African Republic
google.cg // Republic of the Congo
google.ch // Switzerland
google.ci // Côte d’Ivoire
google.co.ck // Cook Islands
google.cl // Chile
google.cm // Cameroon
google.cn // China
google.com.co // Colombia
google.co.cr // Costa Rica
google.com.cu // Cuba
google.cz // Czech Republic
google.de // Germany
google.dj // Djibouti
google.dk // Denmark
google.dm // Dominica
google.com.do // Dominican Republic
google.dz // Algeria
google.com.ec // Ecuador
google.ee // Estonia
google.com.eg // Egypt
google.es // Spain
google.com.et // Ethiopia
google.fi // Finland
google.com.fj // Fiji
google.fm // Federated States of Micronesia
google.fr // France
google.ga // Gabon
google.gd // Grenada
google.ge // Georgia
google.gf // French Guiana
google.gg // Guernsey
google.com.gh // Ghana
google.com.gi // Gibraltar
google.gl // Greenland
google.gm // Gambia
google.gp // Guadeloupe
google.gr // Greece
google.com.gt // Guatemala
google.gy // Guyana
google.com.hk // Hong Kong
google.hn // Honduras
google.hr // Croatia
google.ht // Haiti
google.hu // Hungary
google.co.id // Indonesia
google.com // Worldwide (considered US)
google.ie // Ireland
google.co.il // Israel
google.im // Isle of Man
google.co.in // India
google.io // British Indian Ocean Territory
google.is // Iceland
google.it // Italy
google.je // Jersey
google.com.jm // Jamaica
google.jo // Jordan
google.co.jp // Japan
google.co.ke // Kenya
google.com.kh // Cambodia
google.ki // Kiribati
google.kg // Kyrgyzstan
google.co.kr // South Korea
google.com.kw // Kuwait
google.kz // Kazakhstan
google.la // Laos
google.com.lb // Lebanon
google.com.lc // Saint Lucia
google.li // Liechtenstein
google.lk // Sri Lanka
google.co.ls // Lesotho
google.lt // Lithuania
google.lu // Luxembourg
google.lv // Latvia
google.com.ly // Libya
google.co.ma // Morocco
google.md // Moldova
google.me // Montenegro
google.mg // Madagascar
google.mk // Macedonia
google.ml // Mali
google.mn // Mongolia
google.ms // Montserrat
google.com.mt // Malta
google.mu // Mauritius
google.mv // Maldives
google.mw // Malawi
google.com.mx // Mexico
google.com.my // Malaysia
google.co.mz // Mozambique
google.com.na // Namibia
google.ne // Niger
google.com.nf // Norfolk Island
google.com.ng // Nigeria
google.com.ni // Nicaragua
google.nl // Netherlands
google.no // Norway
google.com.np // Nepal
google.nr // Nauru
google.nu // Niue
google.co.nz // New Zealand
google.com.om // Oman
google.com.pa // Panama
google.com.pe // Peru
google.com.ph // Philippines
google.com.pk // Pakistan
google.pl // Poland
google.pn // Pitcairn Islands
google.com.pr // Puerto Rico
google.ps // Palestinian territories
google.pt // Portugal
google.com.py // Paraguay
google.com.qa // Qatar
google.ro // Romania
google.rs // Serbia
google.ru // Russia
google.rw // Rwanda
google.com.sa // Saudi Arabia
google.com.sb // Solomon Islands
google.sc // Seychelles
google.se // Sweden
google.com.sg // Singapore
google.sh // Saint Helena, Ascension and Tristan da Cunha
google.si // Slovenia
google.sk // Slovakia
google.com.sl // Sierra Leone
google.sn // Senegal
google.sm // San Marino
google.st // São Tomé and Príncipe
google.com.sv // El Salvador
google.td // Chad
google.tg // Togo
google.co.th // Thailand
google.com.tj // Tajikistan
google.tk // Tokelau
google.tl // Timor-Leste
google.tm // Turkmenistan
google.to // Tonga
google.com.tr // Turkey
google.tt // Trinidad and Tobago
google.com.tw // Taiwan
google.co.tz // Tanzania
google.com.ua // Ukraine
google.co.ug // Uganda
google.co.uk // United Kingdom
google.us // United States
google.com.uy // Uruguay
google.co.uz // Uzbekistan
google.com.vc // Saint Vincent and the Grenadines
google.co.ve // Venezuela
google.vg // British Virgin Islands
google.co.vi // United States Virgin Islands
google.com.vn // Vietnam
google.vu // Vanuatu
google.ws // Samoa
google.co.za // South Africa
google.co.zm // Zambia
google.co.zw // Zimbabwe
images.google // requires additional filter to grab keywords – see book Ch9
maps.google
news.google
video.google
//Yahoo domains
uk.search.yahoo
es.search.yahoo
pt.search.yahoo
it.search.yahoo
fr.search.yahoo
nl.search.yahoo
be.search.yahoo
de.search.yahoo
no.search.yahoo
se.search.yahoo
dk.search.yahoo
fi.search.yahoo
ch.search.yahoo
at.search.yahoo
ie.search.yahoo
ru.search.yahoo
pl.search.yahoo
br.search.yahoo
in.search.yahoo
cn.search.yahoo
id.search.yahoo
mc.search.yahoo
yahoo.co.jp
asia.search.yahoo
malaysia.search.yahoo
tw.search.yahoo
sg.search.yahoo
tr.search.yahoo
ca.search.yahoo
espanol.search.yahoo
// UK specific search domains
hotbot.co.uk
excite
bbc
tiscali
uk.ask.com
blueyonder
aol.co.uk
ntlworld
tesco.net
orange.co.uk
mywebsearch.com
uk.myway.com
searchy.co.uk
msn.co.uk
uk.altavista.com
lycos.co.uk
sky.com
britishinformation.com
// Extras
ananzi
anzwers
araby.com
dogpile
elmundo.es
eniro // Sweden and Nordics
eniro // Sweden and Nordics
ezilon.com
hotbot
iafrica.funnel.co.za
naver.com // Korean
mywebsearch.com
rambler.ru // Russian
search.aol.com
searcheurope.com
suche.web.de // German
kelkoo // price comparison engine
pricegrabber // price comparison engine
zinza.com // Arabic
maktoob.com // Arabic
ukr.net // Ukraine
meta.ua // Ukraine
nigma.ru // Russia
This list is updated and added to regularly. However, if you have specific domains (e.g. price comparison engine), or a new search engine that you would like to include, just add it as a comment.