http://onlinemathcircle.com/wp-content/uploads/2011/06/23-rearrange.pdf(Rearrangement)
http://onlinemathcircle.com/wp-content/uploads/2011/03/Holder1.pdf (Holder's)
http://onlinemathcircle.com/wp-content/uploads/2011/01/Lecture-7.pdf(AM-GM, Cauchy)
http://mathdb.org/notes_download/elementary/algebra/ae_A5a.pdf(Introduction to what inequalities are)
http://mathdb.org/notes_download/elementary/algebra/ae_A5b.pdf(a bunch of inequalities)
http://mathdb.org/notes_download/elementary/algebra/ae_A5c.pdf(Tricks to proving inequalities)
http://mathdb.org/notes_download/elementary/algebra/ae_A5d.pdf (Geometric Inequalities)
http://mathdb.org/notes_download/elementary/algebra/ae_A5e.pdf (Solutions to above inequalities)
http://www.math.ust.hk/excalibur/v11_n1.pdf(Muirhead's)
http://aam.org.in/site/sites/default/files/Basics%20of%20Olympiad%20Inequalities_1.pdf (a bunch of inequalities)
http://yufeizhao.com/wc08/ineq.pdf (a bunch of inequalities)
http://www.artofproblemsolving.com/Forum/viewtopic.php?f=151&t=299899