Pros: Privacy is hard to protect on the internet. Tor for Windows is a useful privacy tool.
Other Thoughts: "Some Easier Alternatives" by Corey 2008-01-10 is an interesting post because it is very likely true. Facebook and Google are not the best at protecting privacy. It is said that Google knows a little about almost everybody on earth (at least in the developed countries). Employers in the U.S. query Facebook and other social media when screening applicants for employment. There is also the mainstream companies that are used for background checks like Lexis-Nexis, WestLaw, Accurint, AutoTrackXP.com and others. Advanced Onion Router by Albu Cristian is worth a look.