The "Value Added Directories" organize content in a way that the needed information is easy retrievable and compared. Three different categories exist: Scientific Topics, Instruments and Software and Companies.

Scientific Topics

These directories are an excellent starting point for both a researcher new to the field as an expert who is looking for a intuitively organized web site. They are typically organized in the following way:

• Asymmetric Synthesis
• Biocatalysts
• Carbohydrates
• Heterogeneous Catalysts
• Continuous Flow
• Dendrimers
• Electrosynthesis
• Ionic Liquids
• Fluorous Chemistry
• Isotopes
• Mechanochemistry
• Macrocycles
• Membrane Filtration
• Microwave Synthesis
• Peptides
• Phase-Transfer Catalysts
• Photochemistry
• Solid Phase Extraction
• Sonochemistry
• Supercritical Fluids

Intruments and Software

• Reaction Blocks/Workstations
• Retrosynthesis
• Robotarm-based Systems

Companies

• Compound Libraries
• Custom Synthesis