The invaluable Charles Ortel, who helped expose General Electric's financial shenanigans in 2008, is investigating the Clinton Foundation. He points us to a recent AMA ("Ask Me Anything") thread on 4Chan regarding the Foundation with answers provided by a purported FBI whistleblower.
Yes, it's hard to verify all of this information and the interviewee throws in some gratuitious racist-slash-conspiracist nonsense (perhaps to avoid blowing his cover), but independent investigators appear to have mobilized around the 4chan thread and have assembled a roughly 90-page data dump on the Clinton Foundation. This is a living document and work is in progress.
Among the gems found therein are a list of Hillary Clinton's speaking engagements:
You can read the 90-page report on the Clinton Foundation here. I also recommend following @CharlesOrtel on Twitter.