(also nonabelian homological algebra)
The Eilenberg-Moore spectral sequence is a spectral sequence for the singular homology of product topological spaces which generalizes the Künneth theorem in two ways
it applies without assumption on vanishing of Tor-groups;
it generalizes from product topological spaces to fiber products of fibrations and to products over group actions.
Original articles include
Larry Smith, Homological Algebra and the Eilenberg-Moore Spectral Sequence, Transactions of the American Mathematical Society, Vol. 129, No. 1, (1967) (JSTOR)
Larry Smith, On the construction of the Eilenberg-Moore spectral sequence, Bull. Amer. Math. Soc. 75 (1969), 873-878 (journal)
Atsushi Yamaguchi, Note on the Eilenberg-Moore spetral sequence, Publ RIMS, Ykoto Univ. 22 (1986) (pdf)
Textbook accounts include