According to Murray's Tweet Index

Today FM's Matt Cooper has kept his crown as the most influential Irish journalist on Twitter.

That's according to this year's Murray Tweet Index.

The survey ranks users in terms of followers, output and interaction with other users.

Doug Keating of Murray Consultants says the Last Word presenter is a top tweeter 'Matt doesn't just have a large number of followers, bu he is highly engaged with them on twitter and uses the platform very effectively.