When I first started to use Twitter for my company I was posting discount vouchers constantly, adding random people I didn't know and repeat postings from a Word document I had created, allowing me to copy and paste previous tweets without getting RSI.
Then I downloaded Tweetdeck - I really recommend this free software (it will auto shorten URLs and you can add photos and pictures with a drag & drop). After then I realised, how uninteresting I must be, who wants to be bombarded with repetitious discount codes for a product you don't specifically need at that time.
I learned the basics of Twitter:
* Names are preceeded with '@'.
* Sending out a tweet to ExampleUser will not show up on their page, it needs to be @ExampleUser.
* RT = Re-Tweet, repeating some else's post and crediting them by mentioning their name.
* # the hash symbol represents a group, e.g. I am interested in any local tweets, so I have #bristol and #somerset saved on tweetdeck
* # groups that are being tweeted about (by mentioning this in your post) that are the most popular are called "Trending Topics"
Trending Topic
A regular trending topic is #FF or #FollowFriday where tweeps looking to increase their followers will RT their follower's names in their posts and the circle goes on - here's an example: Here's some great tweeps for #FF @ExampleUser1 @ExampleUser2 @ExampleUser3. This really helps increase your followers, because they join in with the #FollowFriday they WANT to follow and be followed.
Another tip is to follow a tweeter called 'goodbyebuddy' which will notify you daily when anyone chooses to 'unfollow' you, this will help you understand how to make your audience stay with your tweets.
I faded out the promo tweets and started to interact directly with local tweeters, and tweeters who have similar business, by re-tweeting their promotional tweets, effectively helping out their reach, and with good success. In the first 2 weeks of me using Twitter, I had appeared on local radio and booked an advertisement in an eshot who I would have never come across before. You can also tweet to advertise #jobs or #vacancies online, real time, for free.
I hope this you have found this useful as I should have researched Twitter before I went barging in full steam ahead. One twitterer said there are 3 golden rules on Twitter
* 30% Personal tweets and observations
* 30% links to interesting, pertinent articles and webpages
* 30% Shouting about your own business / products / competitions etc
That leaves 10% to do what you like - for me it's following celebrities and replying to their tweets, tweeting about trending topics, and even tweeting about what I had for lunch!
Google Analytics has proved that revenue has been attributed directly to Twitter. I have also proved sales from Facebook, I place high importance on social media, it's free, has a global reach and you get to exchange information in real time.