Social Media Marketing

Such as apps.. ? I know Twitter has that mobile device thing where you put your phone number and receive updates. But I want a way to easily access onto Twitter on my phone. Are there only certain types of phones that can do that?

It seems like information and updates about the same friends keep appearing in my Facebook news feed and there are others who I hear nothing about, even though they've been busy updating away. Why is this?

Hello! One of my family members has added me on Facebook and I'd rather them not see a lot of my profile. How do I hide my information (relationships, interested in, etc.) from just specifically THEM? I've followed the Facebook instructions, but I can't find where I can type in the name of the person […]

On the old facebook homepage it was on the right side, it had the dates coming up and the frinds that had the birthday on that day? I dont see it with the new facebook. Is there an area still, or is it gone?