There are many sources. Be careful about spelling; that may have been the problem. see links for a start
Additional information regarding the Tenement museum located in New York, can be found on the Tenement's website. Wikipedia also has a general write up regarding the Tenement museum.
Once can find information about why yelling at children is bad from a number of sources. A child psychology book, a balanced parenting guide and forums dedicated to parenting should help.
In a desert
There are many websites that can provide you with information about children's health insurance. I recommend you trying out a few different ones and weighing your options. A few sources are gerberlife.com, chipmedicaid.org and insurekidsnow.gov.
One can find information on different cultures, including their children, from online sources such as Wikipedia. One can also view images of Asian babies online through Yahoo Images.
The most traditional is the collection of primary information. Talk to people to find out what they think, count how many children they have, how many houses on your street. Some of this information, for larger areas and in aggregated form, may be available from official sources - but that is not really traditional. Censuses are a relatively modern innovation.
One can find information on how to buy a mattress from a variety of online sources. Such sources include the websites for Info, About, and Get Rich Slowly.
One can find more information about car seat safety from the following sources: NHTSA (National Highway Traffic Safety Administration), Children's Hospital of Philadelphia, The Car Seat Lady.
You can find information about children's health from the Kid's Health website. The Kid's Health website is the number one source for children's health information.
You can find information about children's hygiene online from the Kids Health Organization. Alternatively, you can also find this information from the WebMD website.
One can find more information about par values from various sources. These sources include: Investopedia, Invesco, McGraw Hill, Yahoo Financial, Cornell, and other various sources.
There are many places where one can find information about DOMA. One can find information about DOMA at popular on the web sources such as SLDN and Freedom To Marry.