There are a dwindling number of sites that provide name or phone number info for free. Seems we all need to make a living. There are a few interesting sites that provide more information about you than you might like to see. One of them is 123people.com. Type in your name and it spits out a host of information, like pictures, addresses, comments you may have posted on the web, facebook and myspace account info, plus much more. Worth a visit.
Scam callers are an increasing problem but there are a few sites to report the information and you can use them to see if anyone else complained about a particular number. One site Identifycallers lets you post comments and read others comments.
Whitepages.com and yellowpages,com offer name to number and number to name lookups for people or businesses, just as the paper versions do.
Addictomatic is another site that offers a wealth of information, mainly from blogs, tweets, YouTube, Yahoo, facebook, etc., but not personal info, such as address, phone.