Learn the three essential elements of a great introduction, including tips on effective "hooks," ideas for where to put your thesis, and advice on what sort of background information is suitable for your introductory paragraph.
Source: Linda Neuman, http://valenciacollege.edu/wp/cssc/documents/WritingEffectiveIntroductions.pdf, http://www.indiana.edu/~wts/pamphlets/thesis_statement.shtml