Yes, it used to be quite easy with Google RSS Reader and Feedly to keep track of the stuff thanks to RSS, but a lot is happening on not in public anymore going to Facebook Groups, LinkedIn Groups. I gave up on Twitter a year ago because to much ads and feed got too crowded too quickly but I'm going back to it and their algorithm is doing a better job at curation for now.
Oh, on food there is something fantastic that I like to look at: http://www.seriouseats.com/. I remember their video on the perfect cooking for baked potatoes and their meta-recipe for soups.