What are the good books, online lecture notes or starting material on exponentials sums with applications in number theory for a beginner, apart from N. M. Korobov's book? The book or notes should cover methods of Weyl, van der Corput and Vinogradov, with some details.
Shparlinski has a nice set of lecture notes, aimed at beginners, with a view towards applications: http://www2.ims.nus.edu.sg/Programs/coding/files/ishpar.ps
For van der Corput's method and some developpments, including the Bombieri-Iwaniec method, the book of Graham and Kolesnik "Van der Corput's method of exponential sums" is one of the best sources.
Ten Lectures on the interface of harmonic analysis and number theory by Hugh Montgomery covers these things (Chapters 2 and 3).
K. Chandrasekharan, Exponential sums in the development of number theory, pp. 7-26 in Proceedings of the International Conference on Number Theory (Moscow, 1971), Trudy Mat. Inst. Steklov 132 (1973).
Maybe you will find something useful in the book of Iwaniec & Kowalski entitled " Analytic Number Theory". Morever, I think Huxley's "Area, Lattice Points and Exponential Sums" is worthwhile to read, which focuses a new method deveploed by Bombieri, Iwaniec, Huxley himself and many other followers.