Thought I'd add something back. I always keep a blank word document open to add stuff that is helpful in advancing my knowledge. When I come across something that can be helpful now or in the future and you want to reference it in the future I simply copy from the source and paste it in the word document. If it's a link to a webpage, it will be clickable from the word document. If the document starts getting to long, simply save as (use a name that will allow you to recall what is in the file).