The problem with www.whitepages.com is they does seem to have to API or webservice capability. Meaning the result of you search would be a webpage. You need to do you own parsing to deal with the information you get back.

DECLARE INTEGER ShellExecute IN shell32.dll ;
  INTEGER hndWin, ;
  STRING cAction, ;
  STRING cFileName, ;
  STRING cParams, ;
  STRING cDir, ;
  INTEGER nShowWin
cAction ="open"

oIE = createobject('internetexplorer.application')
oIE.Navigate('http://www.whitepages.com/9901/log_feature/adv_search_w_email/search/FindPerson?firstname_begins_with=1&firstname=Mike&name=Gagnon&housenumber=&street=&city_zip=H9R+3K8&state_id=QC&default_listing=phone&listing=mixed')
INKEY(5)
lcStr=oIe.Document.body.innerHTML
lcFile = SYS(2023)+SYS(2015)+'.htm'
STRTOFILE(lcStr,lcFile)
=ShellExecute(0,cAction,lcFile,"","",1)

>Hi,
>When we need to find person's or business address or phone we may use www.whitepages.com, for example. In my situation, I have a list of names. To save time on entering the names manually, I would rather do it programmatically. Let say names are stored in dbf table and I would scan it by sending the name as a parameter to www.whitepages.com and returned result can be stored in another table.
>What tecnique might be used in this case?
>Thanks.
>Edward.