Easiest Way to Retrieve Twitter Timeline and Hashtags (Twitter OAuth API 1.1)

Twitter terminated its old API, and most of my tutorials stopped working! So, here is the follow up to show you how easy is it to retrieve user timeline and also hashtag. Of course, I don't just stop there. I integrated my previously written script and modified it to work with Grid-A-Licious plugin to create something that's similar with Pinterest. Read Tutorial