Topology notes
Here are some notes I've acquired. As far as I know, none of this material is copyrighted.

Notes on Topological Stability by John Mather, Lectures at Harvard, July 1970

Algebraic Homotopy Theory by John C. Moore, Lectures at Princeton, 1956
Chapter 1,
Chapters 2 and 3, Chapters 4 and 5

The Surgery Obstruction Groups of C.T.C. Wall by J. Alexander Lees

Seminar Notes on SimplyConnected Surgery by Peter Orlik

Intersection Homology and Perverse Sheaves by Robert MacPherson, 1990

Differentiable Manifolds Which Are Homotopy Spheres by John Milnor

Some Free Actions of Cyclic Groups on Spheres by John Milnor, 1963

On the Relationship Between Differentiable Manifolds and Combinatorial Manifolds by John Milnor, 1956

Microbundles and Differentiable Structures by John Milnor, 1961

Seminaire HeidelbergStrasbourg 1966/67 on sheaf theoretic Poincare Duality
Exposes 15,
Exposes 610

CW Complexes and Obstruction Theory  Lectures by Bill Browder, Written and Revised by E. Akin
Chapters 12,
Chapters 34

Cohomology Operations and Obstructions to Extending Continuous Functions  by N.E. Steenrod 1957
A version of these notes eventually appeared as N. E. Steenrod, Cohomology operations, and obstructions to extending
continuous functions, Adv. Math. 8 (1972), 371–416. Thanks to Timothy Porter for pointing this out!

Here are two papers of Don Anderson's provided by Claude Schochet:
His thesis A New Cohomology Theory and a paper on Universal Coefficient Theorems for Ktheory.

Lectures on Homology Operations, Lectures by Clint McCrory, notes taken by Dave Damiano and James Stormes (Chapter 2) and Kent Johnson (Chapter 3)
According to Clint, the planned Chapter 1 was never written, but Chapters 2 and 3 are selfcontained.

Notes on Algebraic Topology by Saunders MacLane, 1951
And here are some links to notes on other web sites.