What's the best way to share my presentation slides online? I'm thinking of posting slides from some of my technical presentations online.  One option I've used in the past is just posting the PDFs.  But I've seen some sites that offer nice interfaces for others to view and share your slides without downloading them, such as


SpeakerDeck
Slideshare
Present.me


I am primarily interested in advertising my research to other researchers who might be interested in using it or collaborating.

Which site should I use, and why?  Or are raw PDFs the way to go?

In case it matters, I'm a computational mathematician and my slides are a mixture of text, equations, plots, short videos, and diagrams.
I typically post my slides on my website as pdfs.  On the title page of my slides, I have started adding a line that says something like "slides available on my preprint page", and sometimes I'll mention this at the start of my talk.  On my website, I have a page for all my slides and I also link to the relevant slides on my preprints page.  Personally, I prefer when speakers make their slides available as pdfs, because I like being able to download them and file them away, rather than needing to bookmark a website.  Similar to my preprints, I'm excited to have folks download my slides (so I don't see any reason to control their distribution).