(Oct. 31, 2011) Here are several articles and web resources about world population reaching 7 billion. The United Nations has designated Oct. 31, 2011, as the day that world population reached 7 billion.

As World Passes 7 Billion Milestone, UN Urges Action to Meet Key Challenges (United Nations)
http://www.un.org/apps/news/story.asp?NewsID=40257&Cr=population&Cr1

Beyond 7 Billion: Innovation and the Future of Population Growth (Washington Post)
http://www.washingtonpost.com/blogs/innovations/post/beyond-7-billion-innovation-and-the-future-of-population-growth/2011/09/13/gIQAt4YDKM_blog.html

China’s 1-Child Policy Attacked (Hindustan Times)
http://www.hindustantimes.com/News-Feed/restofasia/China-s-1-child-policy-attacked/Article1-761980.aspx

World Population to Hit 7 Billion (The Hindu)
http://www.thehindu.com/todays-paper/tp-international/article2544111.ece

World Population Hits 7 Billion (USA Today)
http://www.usatoday.com/news/world/story/2011-10-30/world-population-hits-seven-billion/51007670/1

7 Billion (National Geographic Magazine)
http://ngm.nationalgeographic.com/7-billion

National Geographic Magazine Marks World’s 7 Billionth Person With New App for iPad
http://press.nationalgeographic.com/pressroom/index.jsp?pageID=pressReleases_detail&siteID=1&cid=1319726947598

Seven Big Problems for 7 Billion People (MSNBC)
http://www.msnbc.msn.com/id/44990504

7 Billion Reasons to Empower Women (CNN)
http://www.cnn.com/2011/10/31/opinion/turner-7-billion/index.html?hpt=hp_c2

Population 7 Billion: UN Sets Out Challenges (BBC)
http://www.bbc.co.uk/news/world-15459643

Curb Soaring Population Growth? Keep Girls In School (Los Angeles Times and Reuters)
http://www.latimes.com/sns-rt-population-familyplanning-featuren1e79j0w0-20111024,0,7335342.story

7 Billion Stories
http://www.7billionactions.com

What’s Your Number? (PAI)
http://www.populationaction.org/Articles/Whats_Your_Number/Summary.php

A Global Push to 7 Billion People (Washington Post)
http://www.washingtonpost.com/wp-srv/special/world/india-leads-push-to-7-billion/