LoveToKnow.com, iSpeeches.com, PresentationMagazine.com, and Find-The-Words.com all offer a variety of graduation speech examples for inspiration and instruction. The websites also include information on the process of writing a speech.
LoveToKnow.com offers examples of graduation speeches, and also includes tips on how to write a speech. They recommend that the speeches offered as example are not copied, and instead used as a guideline.
iSpeeches.com offers examples of speeches, tips for speech writing and speech writing services. Their examples are available for download and organized based on the occasion and the role of the speaker.
PresentationMagazine.com offers examples of speeches, as well as templates for speech writing. They also offer PowerPoint presentation recommendations and advice on how to best write speeches and public speaking in general. Depending on the author of a given speech example, the document may be used and altered for the speakers own purposes.
Find-The-Words.com features a number of speech examples covering multiple topics and offers advice on writing and public speaking. The examples on this site are available for use, and the site recommends using their speeches if writing an original one is not a viable option. They suggest using their speech examples as a template and swapping the stories used in the speech with one's own for a personal touch.