Major news media reported today about a large child porn sting operation, which resulted in 27 arrests in several countries. In this context, if you find / observe such activity, please report it in the US to the National Center for Missing and Exploited Children. Please DO NOT send us any samples or links, but report it to the National Center's Cyber Tipline (see link on their home page).

The National Center for Missing and Exploited Children is tasked by the US government to coordinate the response in such cases and will forward reports to the appropriate law enforcement entities. Let us know if you know about similar entities in other countries and I will add respective links.

Links for other countries:
Standard Disclaimer: we do not endorse these sites and are not responsible for their content.
That being said these sites have been recommended by a number of readers and we check each one out to see if it looks useful and legit.

Austria: http://www.bmi.gv.at/meldestellen/meldestelle_kinderpornografie.asp
Belgium: http://www.gpj.be/uk/index.html
Brazil: http://www.censura.com.br/denunciar.htm
Canada: http://ncecc.ca/index_e.htm
http://www.cybertip.ca/
Denmark: http://www.redbarnet.dk/Default.asp?ID=487
Germany: your local "LKA" (Landes Kriminal Amt). For a list, see the list of addresses.
Netherlands: http://www.meldpunt.org/
Switzerland: http://www.cybercrime.ch (for all cyber crime)
UK: http://iwf.org.uk/
Colombia: http://www.internetsano.gov.co
for other countries, check www.childfocus.org

(Thanks to everyone submitting links!)