The lack of diversity in computing has existed for decades. It has garnered the attention of computing educators and private companies who have implemented a host of outreach and retention programs to draw more diverse students into the field and the workforce. A question that stands out is whether or not these programs are effective in the long term in helping to mitigate the lack of diversity in the field. To determine an answer to this question, the authors undertook a systematic literature review of reported computing outreach activities in relevant journals and conference proceedings for the years 2009- 2014 inclusive. Upon consideration of all relevant articles, 73 articles were coded for information about the type of outreach, target audience, and reported results. Summaries of the findings of the literature review are presented in this poster.