Sections At The Infopop Forum:

• General Biodiesel Discussion General topics on Biodiesel. Great place to start.
• Biodiesel Connections A section devoted to helping people connect with other Biodieselers.
• Making Biodiesel This one is about actually making the fuel. 80/20 method, advanced techiques, it's all here!
• Biodiesel Quality This section is where we talk about how to test the quality of our fuel.
• Biodiesel Equipment Got a biodiesel equipment question? This is the place!
• Dry Washing Biodiesel Information on washing Biodiesel without water.
• Acid Esterification All about using Sulfuric Acid to reduce Free Fatty Acids (lower the titration value).
• Uses For Glycerin By-product All about how to use, get rid of, recycle, and deal with Glycerin.
• Methanol Recovery Dedicated to how to recovery methanol from Biodiesel and Glycerin.
• Biodiesel For Heating All about using Biodiesel as a home heating fuel.
• Algae Biodiesel Devoted to making Biodiesel from Algae.
• Solvent Thinning All about blending diesel fuel, kerosene, or other solvents with unreacted vegetable oil.

We really like the Infopop Biodiesel Forum the best and participate there often.
It has such a wealth of information & knowledge that we recommend it to everyone.
The others are also good, but if you're ready to dive in, then Infopop is for you!