Some really useful stuffYou spend hours on Twitter and wonder if you will ever get meaningful returns on your time and energy! Are you having any impact? Twitter can be a useful tool in your marketing toolkit but how do you know if you are using it effectively.

This handy Twitter Grader tool from the helpful chaps at Hubspot can help you measure how influential you are on Twitter and whether your profile has room for improvement.

I gave it a go and scored 91/100 – how did you do?