I always tag events (conferences, seminars etc.) with the tag events, so you can find all the events I've listed by clicking on the events tag, which does this search http://information-literacy.blogspot.co.uk/search/label/events It shows them in reverse chronological order of when I posted about them, and not in calendar order of when they take place, but you still might find it useful when searching for information literacy events.
I have now started additionally adding the tag webinars to posts about online events, as there are increasing numbers of these and they are interesting internationally (they will be found with both the events and webinars tags). The webinars tag search is http://information-literacy.blogspot.co.uk/search/label/webinars
I have added these links to the "selected links" list on the right (you can also still find the tags in the long tag list, also on the right)