A desktop wiki like tool for keeping track of notes, phone numbers, and even has built in tools to use as your GTD system. It is cross platform running on Linux and Windows. With Dropbox you can keep your notes synced between all of your computers. You can even attach documents, files, and insert pictures too to keep all of your information in one place. Each note page is saved in plain text making it possible to edit the files with a normal text editor if you do not have Zim Wiki installed on a computer but have access to the files.
Add desired wikipedia articles to a "book". You can change the order of the articles in your book and structure them using chapters. Further, you can download the books as a PDF or ODF, or order a printed book.
Help - http://en.wikipedia.org/wiki/Help:Books
If you are streaming in an HD format using the FinalWeb streaming service this is a page on how to update the player to be an HD player. There is also some other bonuses with the customer player including automatic start and a custom message when you are not broadcasting.
This will be covered at the 2015 WelsTech conference in my Streaming Without a Canoe (Intermediate) session, sneak peak here.