Following are a number of sites that offer free CCDP study guides. Some of them you may have to register for first, but in all cases the registration only takes a couple of minutes and is completely free. If you would like to suggest a good CCDP self-study resource to add to our list, then please contact us.
http://www.gdd.net Need to log in first (free), but some good quality info
http://www.ciscopress.com CCDP ARCH sample chapter
http://www.itgameroom.com Play games and learn about Cisco stuff at the same time
http://www.cisco.com Cisco's CCDP study guide
http://www.groupstudy.com Cisco certification study group with study guides
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Remember also that you can get a completely free subscription to many different computer magazines, including Network Magazine (and many other types of mags) here.
