Hock, Randolph,  1944- 
The extreme searcher's Internet handbook :  a guide for the serious searcher /  Randolph Hock ; foreword by Greg R. Notess.   - 2nd ed.   - Medford, N.J. :  CyberAge Books,  c2007.   - xxvii, 326 p.  :  ill. ;  24 cm.