TGIF! It sure has been a busy week. Take a minute to catch up on what you missed with our round up of stories on PR, social media and content marketing.

A Fundamental Lack of Understanding (6 A.M.): Richard Edleman refutes four misconceptions about public relations.

Twitter’s New Profile Layout Is Here (HubSpot): The new Twitter profile layout looks similar to Facebook’s layout but there’s also another update, you can now customize how tweets appear on your feed.

LinkedIn Retiring Products & Services Tab on Company Pages (SocialTimes): Say goodbye to to the Products and Services Tab and say hello to Showcase Pages.

6 troublesome word pairs (Vocus): Before the Grammar Police catches it, make sure you’re using the right word from these tricky word pairs.

Does PR need rebranding? (PR Daily): There are four ways to ensure that your PR efforts resonate positively with journalists and have a great impact on your business and branding for your client.