Deep Compaction of Granular Soils by Dr. K. Rainer Massarsch  
   Full text of this paper which addresses general requirements of compaction of granular soils with respect to design, execution, monitoring and quality control.
   http://www.geoforum.com/knowledge/texts/compaction/index.asp

Foundation Engineering by Prof Bengt B Broms  
   Collection of figures that illustrates the design, analysis and construction of spread footings, rafts, piles, sheet piles and slurry walls as well as retaining walls.
   http://www.geoforum.com/knowledge/texts/broms/index.asp

The Wave Equation Page for Piling  
   Articles and technical monographs, alternative solutions and article submission.
   http://www.vulcanhammer.net/wave/

Pileline Online  
   Magazine to inform engineers, designers and contractors about materials, accessories, innovations and equipment for deep foundations. Articles, photographs and meetings of interest.
   http://www.pilelineonline.com/

Statnamic Load Testing  
   Testing method for determining the load-displacement characteristics of shallow and deep foundations. Includes an animation and photographs.
   http://www.eng.usf.edu/~gmullins/Statnamic_intro.htm