Reference for spectral sequences What are good expositions of spectral sequences, which include a thorough introduction to the topic as well as the most important examples of applications - maybe with an emphasis an topological and/or operator algebraic uses.
I know that the wikipedia article is quite extensive, but I'd like to have something... nicer.
 A: If you know a bit of algebraic topology Hatcher's book mentioned above is great. I thought it was a little slow going, so instead I prefer Mosher and Tangora, which is now a Dover book!
I think there are some great exercises that really made me feel comfortable with Spectral sequences. The first Two SS I would look at are Bockstein and Serre. First look at the description/construction/definition of $sq^1$ in MT. It IS the first differential in the mod two bockstein SS. so now you can compute integral cohomology from mod two cohomology once you know how $sq^1$ acts (this also shed light on $sq^1$ for me). To do these computations you should adjoin some indeterminate and use adams grading. then $d_1$ goes up one and to the left one.
Now you can use the serre SS and various simple fibre sequences to compute the cohomology of all the complex and real projective spaces WITH their ring structure! (first compute it for the infinite cases then restrict). This is all spelled out in MT (maybe not the part about restricting to get the finite dimensional projective spaces). 
Then compute the cohomology of $\Omega S^n$ for every n, with ring structure!
Then prove the Thom Isomorphism Thm with a relative form of the Serre SS.
Also, when you are looking at the bockstein SS draw one of boardman's unrolled exact couples and look at what is going on. And dont use their construction of the steenrod operations, there are better places imo.
A: A nice place to start is Timothy Chow's "You Could Have Invented Spectral Sequences". 
A: Allen Hatcher has some textbooks available for free download on his website, including the first 100 pages of an unfinished text on Spectral Sequences in Algebraic Topology.
It should qualify as a thorough first introduction to the topic, but I don't think all of the important examples have made it into the text.  I haven't read it myself, but I remember his more basic text on algebraic topology being very friendly and a good introduction.
A: I really like the book J.Davis and P.Kirk, "Lecture notes in Algebraic topology". 
In their book (in Chapter 9,10), they give a friendly and thorough introduction to Spectral Sequence with 


*

*full-detailed calculations

*elegant interpretations

*vivid examples.


Here are some nice interpretations and jokes which I like it. 

Computing with spectral
  sequences is somewhat like computing integrals in calculus  - in page 237 (introduction part of spectral sequence). 
As a service to the reader, we will explicitly unravel the statement of
  the above theorem...
  - in page 242, giving detailed and helpful explanation.
We will use the following lemma, which shows why Serre classes are
  tailor-made to be used with spectral sequences. - in page 271. 

Unfortuantely, there are so many errata in their book. The collection of errata is available from J. Davis's page. Actually, I read it from cover to cover. But, I remember that there are some errata not in J.Davis's collection. 
Anyway, I would like to emphasize 

J.Davis and P.Kirk book is a perfect
  introduction to Spectral Sequence.

A: I strongly recommend reading Ravi Vakil's SPECTRAL SEQUENCES: FRIEND OR FOE? as a first introduction to spectral sequences. I have tried to learn spectral sequences elsewhere, but this had helped me to get a much better grasp at what is going on there.. 
A: I like the exposition in the appendix to Eisenbud's Commutative Algebra, which does everything in a kind of friendly way via exact couples. It doesn't do the Grothendieck spectral sequence, though, but that's in many other places (e.g. Lang's Algebra), and essentially follows (after some homological stuff) from the spectral sequence of a double complex. (I should confess that I've not myself needed to know too much about spectral sequences at the moment (beyond the Leray spectral sequence and the Cech-to-derived functor one in sheaf cohomology), and my knowledge of them is correspondingly limited.)
EGA III has several applications of spectral sequences in algebraic geometry. The very first result, that the higher quasi-coherent cohomology vanishes on an affine scheme, implicitly uses the Cech-to-derived functor spectral sequence since the computation given is that of the Cech cohomology (but he doesn't actually go through the details--I think they're in Godement's Theorie de faisceaux, but the deduction of it as a special case of the Grothendieck's spectral sequence is in Milne's online notes on etale cohomology). Another application in EGA III is the proof of the proper mapping theorem: that a proper map of noetherian schemes preserves coherence. The argument is very pretty, and starts in the standard case by doing this for a projective morphism (which is essentially the calculation, as in Hartshorne, of the cohomology of the standard line bundles on $\mathbb{P}^n$). But to deduce it for a proper morphism, the real fun starts when you "approximate" a proper $f: X \to Y$  morphism by a projective one (using Chow's lemma) and then show that there is a "significant" sheaf on $X$ which pushes forward to $Y$ coherently using the projective morphism and the Grothendieck spectral sequence between various push-forwards. (There's also a devissage argument that I'm skipping here.)
A: I really like the way Bott & Tu develop spectral sequences in "Differential Forms in Algebraic Topology".  It would be an especially good choice if you happen to have some familiarity with de Rham cohomology; they begin by just sort of easing you into the whole idea by proving the isomorphism of de Rham cohomology and Cech cohomology by constructing a double complex whose cohomology is isomorphic to both of those.
Of course, they only give uses for spectral sequences in topology.  I think they mainly introduce them to be able to give the spectral sequences for the homology and cohomology of the total space of a fibration.  In this application there is particularly nice geometric intuition for the algebraic machinery, which I found very useful for trying to get to the bottom of what these things really do.
A: I really like the last chapter of Aluffi's book "Algebra: Chapter 0."
Perhaps one of the canonical references (especially to see tons of applications) is John McCleary's "A User's Guide to Spectral Sequences."
A: For the "cohomological version" of the spectral sequences, with applications in algebraic geometry: I suggest Vakil's F.O.A.G., paragraphs 1.7, 23.1, 23.3, 23.4 and 30.2.
