Sites

Brachistochrone Problem (Popularity: )
http://home.imm.uran.ru/iagsoft/mirr/eric/Brach.html
Gives details on how to arrive at the general solutions. Includes definition of terms.

Calculus of Variations and Optimal Control (Popularity: )
http://www.math.niu.edu/~rusin/known-math/index/49-XX.html
Calculus of variations and optimal control. Optimization.

Springer LINK: Calculus of Variations (Popularity: )
http://link.springer.de/link/service/journals/00526/
Journal with table of contents and article abstracts back to 1995. Full text available to subscribers only.

Minimal Surfaces and Isoperimetric Problems (Popularity: )
http://www.ugr.es/local/pvrarea
Research group is devoted to variational problems related with the area operator, concerning the minimal surface theory and isoperimetric problems. Includes list of conferences and publications. University of Grenada, Spain.

Calculus of Variations and Geometric Measure Theory at Pisa (Popularity: )
http://cvgmt.sns.it/
Preprints on various topics on the calculus of variations.