I just finished teaching a session on digital media. There are a lot of tools out there for creating online slideshows with your pictures. Here is a neat site I found that is web-based and simple for students to use.
Showbeyond allows you to make a slideshow with your pictures. You can then add titles, captions, and audio with your slideshow.
To share your slideshow you can email it, share the link or embed it into your site.
Here is the slideshow I made: