If you have a data plan then it won't cost you anything otherwise it will.
If uor talking about the money with eyes...its Someone's Watching Me by Rockwell
I have used some free training I found about Twitter Ads. A guy called Adrian Fleming has done a video and after watching it Twitter Ads are working really, really well for me too.
No, it's very unlikely Twitter is going to cost money. What becomes a socializing site that costs money?
You can't gain money through Twitter. You can only advertise a product/service/shop.
Unless you have a mobile phone plan that supports Twitter, then yes, Twitter will charge you money.
Twitter is completely free to the user.
Your mom will pay money for you
Advertisments.
Twitter aren't generating much avenue as they don't use advertising.
No it doesn't.
No it doesn't.
I don't think it needs money.