The Finnish ISP Mikkelin Puhelin is blocking access to the W3C (World Wide Web Consortium) site, describing it as child porn.
Due to reasons yet to be determined, the website of the World Wide Web Consortium, w3.org/w3c.org, is being filtered as child pornography (wget/curl) by the Finnish ISP, DNA Internet.
Update Sept 27. 3PM: DNA has removed w3c from their list, but another ISP, Mikkelin Puhelin (MPY) has added it (dig/host).
From Wikipedia: The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web (abbreviated WWW or W3). It is arranged as a consortium where member organizations maintain full-time staff for the purpose of working together in the development of standards for the World Wide Web.
W3C filtered as child porn by Finnish ISP
(Thanks, Andrew!)