energy-Brazil info /what is ADR/international Investing

1. http://en.wikipedia.org/wiki/Electricity_sector_in_Brazil
2. http://www.allacronyms.com/cat/8/ADR/American_Depository_Receipts/1231383
3. http://www.nyse.com/pdfs/CurListofallStocks%2012-31-12.pdf
4. http://seekingalpha.com/article/318128-the-10-most-traded-adrs-on-the-nyse-nasdaq-and-otc-in-2011
5. http://internationalinvest.about.com/od/investinginadrs/a/Investing-In-Sanofi-and-Other-French-Adrs.htm
6. http://internationalinvest.about.com/od/investinginadrs/