Nagina Parmar and Ajay Singh: Geobiotechnology.- Nadine Loick and Christopher Weisener: Novel Molecular Tools to Assess Microbial Activity in Contaminated Environments.- Anu Kaliaand Vir R. Parshad: Advanced Molecular and Microspectroscopy Toolbox for Deciphering Soil Diazotroph Diversity.- Megha K. Purohit, Vikram H. Raval, Satya P. Singh: Haloalkaliphilic bacteria - Molecular diversity and biotechnological applications.- Asha A. Juwarkar, Rashmi R. Misra and Jitendra K. Sharma: Recent Trends in Bioremediation.- Arvind Sinha, Rajeshwari Sinha and Sunil K. Khare: Heavy Metal Bioremediation and Nanoparticle Synthesis by Metallophiles.- Bernhard Dold: Mineralogical and Geochemical Controls in Biomining and Bioremediation.- Lala Behari Sukla, Sunil Kumar Behera and N. Pradhan: Microbial Recovery of Nickel from Lateritic (Oxidic) Nickel Ore.- Ajay Singh, Jonathan D. Van Hamme, Ramesh C. Kuhad, Nagina Parmarand Owen P. Ward: Subsurface Petroleum Microbiology.- Satyavir S. Sindhu, Priyanka Parmar and Manisha Phour: Nutrient Cycling: Potassium Solubilization by Microorganisms and Improvement of Crop Growth.- Satyavir S. Sindhu, Manisha Phour, Sita Ram Choudhary and Deepika Chaudhary: Phosphorus Cycling: Prospects of using Rhizosphere Microorganisms for Improving Phosphorus Nutrition of Plants.- Ajay Singh, Nagina Parmar and Owen Ward: Biotechnology in Enhanced Petroleum Oil Recovery.- Innocent O. Oboh: The Chemistry of Removal of Inorganic Compounds from the Soil.- Nagina Parmar, Ajay Singh and Hammad Khan: Bioremediation of Contaminated Sites and Aquifers.