Twitter has released an update to its terms of service that specifically impacts automation services like dlvr.it. The specific update states,
"Do not (and do not allow your users to) simultaneously post identical or substantially similar content to multiple accounts."
To honor the spirit of this rule, dlvr.it has discontinued allowing more than one Twitter account to any RSS Feed. Not to worry, though. Twitter also has said,
"As an alternative to posting identical content, you can Retweet content from one account from the other accounts you wish to share that post from."
This means that dlvr.it has introduced features that will allow you to Retweet Tweets from one account you control to another account that you control. For more information, visit our document, How to Automatically Retweet from one Twitter account to another.