Twitter have changed how third parties can display the Twitter brand across mobile, websites, print and broadcasting.
Here is a list of the key things you need to know to make sure you don't break their rules.
1. Use the bird icon
For some time there has been a debate whether to use a Twitter 't' or the bird icon in your designs. Many sites have their own illustration style for the bird and some still use the old gradient blue Twitter logo. There is now no confusion. You must use one of these bird icons - please note that there is no black/grey bird icon - it is either white or the Twitter blue.
That means none of the below Twitter icons are acceptable.
Even on our site here, we've had to change from the 't' icon to the bird icon. We even had to remove our bird illustration on the 'Latest Tweets' module in the right hand column.
2. Remember your capital T
From now on make sure that whenever you use the word 'Twitter' or 'Tweet' that they always begin with a capital T.
3 Get permission from authors to use their Tweets
If you are using someone's Tweet for a promotional microsite, make sure Tweets are real, from real accounts, and are approved by the author.
If you are using someone's Tweet for an offline publication the same rule applies as above. One of my Tweets was recently used in a national newspaper without my consent - this would now be unacceptable according to Twitter policy.
4. Don't make your Twitter branding too large
Make sure you don't display the Twitter brand or trademarks larger than your own marks.
For a full listing of the new Twitter trademark and content display policy please visit the official Twitter site or contact Acknowledgement.