Matching Sources to Needs

For question #1 What laws are there to help keep company's from promoting merchandise inappropriate to my children? I could use for a source a scholarly journal because it could have original research on my question I could also use a reference book such as a law book to see if there are any laws that could be relevant to my questions.

For question #2 How can COPPA (Children's Online Privacy Production Act of 1998) help keep my kids safe when using the Internet. I could use as a source a government web site like usa.gov to learn more about COPPA. I could also use a periodical magazine to find popular opinion on the subject.

For question #3 What kind of personal privacy can I expect from my Internet provider. I could use reference book like a law book to see if there are any laws on this subject. I could also use newspapers to see if there are any articles about my subject and to further my search with any sources sited in the articles.