Twitter

Companies with more than 1,000 Twitter followers generate more than 800 new website visitors a month
64% of users are more likely to buy from brands they follow on Twitter
Click-through rate of Twitter ads is to 8 to 24x higher than Facebook

What Should You Post on Twitter?

Stay on topic – A strong theme to your Tweets really helps. What do you want to be known for? Have an opinion.
Give valuable information to your clients and customers – What do they want to know? Educate, inform and entertain them. Post information you think they’d find useful or interesting – links to articles or video, share quotes, relevant news, books you’ve read, opinions, tips.
“Curate” good content – Share posts and articles by others that you think your readers will find valuable or back up your approach.
Don’t sell – 80% of the content you share should be non-promotional. This is not the place for a stream of high-pressure sales messages. Think of it as an online networking event. Promote your services occasionally but this should not be the main event.
Share links to your blog entries
Promote eBooks, podcasts or webinars within your field

Use no more than three hashtags per tweet – Using too many hashtags makes your tweet hard to read and it lessens the impact.
Keep it short – tweets of less than 100 characters receive more engagement than longer ones. So consider condensing your tweets and use a URL shortener.
Tweets containing image links have 5x higher engagement rate
Ask for retweets – tweets specifically asking followers to “retweet” had 12 times higher retweet rates
Do not buy followers – Often these followers are not targeted and may trigger a spam filter
Do not follow too many people at once – Your account may trigger a spam filter and you’ll be disabled
Do not self-promote too often — This is a sure-fire way to alienate anyone that followed you or to make it hard to even grow your following