Here is the information to prepare a simple presentation on how to build a web site which could easily be turned into an informative speech. This also lends its self to hand outs where you could have links to your own website.
If your just getting started in professional speaking and you want to measure your results, one way is by money.
One of my 5 minute speeches just like the above netted me $75 in the form of an affiliate commission on the sale of a website service.
It did not cost anything to make that sale (well, maybe $4 with some printouts and the gas to drive there).
Speak well and prosper.