One of the best articles on proper striking I've read. He uses Carlos Condit as an example,so don't let this get to you, of less than stellar striking technique.
http://www.bloodyelbow.com/2013/8/21/4638130/championship-striking-in-mma
Also the example article here is good.
http://www.expertboxing.com/boxing-techniques/body-movement/how-to-improve-your-boxing-balance