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If you use a Mac, I recommend you to use the built-in TeXShop editor (TeXworks is a "clone" of TeXShop) - and the built-in BibDesk reference manager. (You find them under Applications -> TeX).
LaTeX in the cloud
It is also possible to use LaTeX as a web application without installing anything. The are at least three different appliucations
I do not have much experience with these applications so I cannot give much advise.
Happy TeXing!!