Surfactant chemistry
What are surfactants?
What are surfactants? Updated
Micelles (updated)
Basic, general information
How to interpret names of surfactants (updated, 2010)
How to interpret names of surfactants (updated for 2012)
What causes skin tightness after washing?
Incorporate mildness into your products. 
Viscosity: Increasing surfactant concentration
Viscosity: Increasing micelle size
Viscosity: Creating gels
Which surfactants should you buy?
Why CP soap is not a great shampoo. 
Surfactants and clarity
Surfactants and fragrance oils (viscosity issues)
Surfactants and essential oils (some ideas for their usage)

NEW POSTS on the new blog!

The science of viscosity

Reading the INCI names of surfactants NEW!

What does it mean for something to be cationic, anionic, or non-ionic? New!

Using powdered surfactants in liquid products

Surfactant types
Carboxylates (updated)
Sulfates (updated)
Alkyl sulfates– like sodium lauryl sulfate (SLS) – updated
Sodium coco sulfate is an alkyl sulfate, too (updated)

Alkyl ether sulfates – like sodium laureth sulfate (SLeS) – updated
Amide ether sulfates (updated)
Alkyl glyceride sulfates (updated)
Sulfonates (updated)
Alkyl sulfonates  – like C14-16 olefin sulfonate (updated)
Alkyl-aryl sulfonates (updated)
Sulfosuccinates – like disodium laureth sulfosuccinate or DLS (updated)
Fatty acid isethionates– like sodium cocoyl isethionate (SCI) (updated)
      A few notes on SCI (updated)
A few thoughts on working with SCI (updated)
How to melt SCI in a double boiler (updated)
Comparing different types of SCI (updated)

Taurates or taurides – like sodium methyl cocoyl taurate (SMC taurate) – updated
Phosphate esters
Acyl-amino acids & salts (updated) – updated even more, coming soon
Sulfoacetates – like sodium lauryl sulfoacetate (SLSa) – updated
Betaines – like cocamidopropyl betaine (updated)
Alkyl polyglucosides or glycerides – all kinds in here from decyl glucoside to PEG-7 glyceryl cocoate (updated)
Ethanolamides or alkanolamides– like cocamide DEA (updated)

New – polyglucose/lactylate blend
New – disodium cocoamphodiacetate (updated)
New – decyl glucoside (more in depth) updated
New – foaming proteins, like silk – updated

New – other foaming proteins – updated
New – Miracare Soft 313 – updated

Thickeners for surfactant systems
Crothix (updated)
EZ Pearl or glycol distearate
Siligel – updated
Rheomer 33T
Ritathix DOE (updated)

Interesting questions about surfactants

How can we add a cationic polymer to an anionic product, like a facial cleanser, body wash, or shampoo?