The organization and content of the pages on recent talks has changed. Instead of being organized by talk, these pages are now organized by content. The content in some cases is more complete and up-to-date than the actual talks and in some cases is more brief than the actual talks. In some cases only PowerPoint-style "slides" are here. They are not PowerPoint and do not require PowerPoint to be read.
The links below lead to "slides" for some recent talks. They are not complete but they might be useful to give a rough idea of the talks and to help remind someone who was at a talk of some of the things that were said.