EDUCATION Minister and all-round Good Egg, Jim Knight, told me this evening about his latest Twitter experience: using it to take part in a Q&A in Blackpool from his office at the Department for Children, Schools and Families.

You can see the whole thing here, and it seems to me a rather innovative way to use Twitter; like tele-conferencing, but different — less informal and, crucially, two-way. Jim thought it went well, and I gather the feedback from the delegates was positive.

But the exercise gave me an idea: how about ministers at the despatch box being limited to 140 characters when they answer? It would certainly throw up some interesting scenarios.