We've asked a few people for recommendations about giving good introduction speeches. Here are their tips, in their words:
"Doublecheck the pronounciation of the person's you're introducing's name. Nothing is more awkward than stumbling or missaying it just before they have to come up on stage and correct you."
"I found an introductory speech at my university quite interesting. The speaker (I've forgotten his name) was very interactive, asking students what they expect of the course. It worked more like an ice breaker, where everyone's opinions were looked at and everyone had a chance to make a comment. He then did the full introductory speech alongside a powerpoint, which is more than helpful. Small bullet points on a PowerPoint allow us as an audience to know where he was going, and make the necessary notes, and also the most relevant information was contained on the PowerPoint. I think introductory speeches need to be short and snappy, with enough information but not too much to bore you."
To sum it all up, keep it short and interesting. Interaction is good. Most importantly, remember to mention who or what you're introducing often enough that the audience will remember when you leave the stage.