Cohomology of Finite Groups of Lie Type I , E.Cline, B.Parshall, L.Scott, Publ.Math.IHES (1975) PDF
Lectures on the Cohomology of Finite Groups, Alejandro Adem (2004) PDF
Cohomology of Finite Groups of Lie Type II , E.Cline, B.Parshall, L.Scott, J Algebra (1977) PDF
On the 1-Cohomology of Cohomology of Finite Groups of Lie Type , W.Jones, B.Parshall PDF
Calculating Group Cohomology , Jon Carlson (2001) PDF
Second Cohomology Group of a Finite Group , D.F.Holt (1986) PDF P> Mechanical Computation of First and Second Cohomology Groups , D.F.Holt J. Symbolic Computation(1985) PDF
Computing Second Cohomology of Finite Groups , Ellis & Kholodna (1999) PDF
Some New Examples in 1-Cohomology , L.Scott, J Algebra (2003) PDF
Dimension of First Cohomology Group, R.Guralnick, (1985) PDF
First Cohomology Group and Generation of Simple Groups, R.Guralnick, C.Hoffman, Trends in Mathematics PDF
1-Cohomology of Finite Groups of Lie Type, M.Dowd J. of Algebra(1996) PDF
Projective Modules for the Group of 27 Lines, D.Benson PDF
Wayne Jones' Thesis, U. of Minnesota, 1975 PDF
Premet,Suprunenko, Weyl Modules with Fundamental Highest Weights for Symplectic Groups PDF
Jantzen, First Cohomology Groups for Classical Lie Algebras, 1991 PDF
Friedlander, Weil Restriction and Support Varieties PDF
A file to compute the 1-cohomology of 2 KG representations and to construct extensions of representations can be found here