Experiment Protocols
    Dr. Steven Hallam's lab has created a set of video protocols on the Journal of Visualized Experiments:

Seawater Sampling and Collection

Large Volume (20L+) Filtration of Coastal Seawater Samples

Small Volume (1-3L) Filtration of Coastal Seawater Samples

DNA Extraction from 0.22 µM Sterivex Filters and
  Cesium Chloride Density Gradient Centrifugation

Large Insert Environmental Genomic Library Production