Good references for Expander graphs The wikipedia page give a nice general look for expander graphs. However I'm looking for more comprehensive reference. Could anyone please suggest some **references** for expander graphs? (books/surveies online/printed)

My port of first call is Hoory/Linial/Wigderson, _Expander graphs and their applications_ , BAMS 2006. This is mostly focused on links with computer science. (The focus of Lubotzky's survey is the use of expanders in mathematics itself.)