There are plenty of threads on here with varying opinions as to the usefulness of particular TLD extensions.

With regards purely to keyword 'usefulness' which do you consider to be the best for natural results?

As the majority of A4U users are UK based your opinion for UK results would be appreciated.

Please vote and we can have a focus for the number of threads this interesting topic generates.

This is a multi-selection poll, so if you're unsure simply select the ones you think are most useful.

Comments also appreciated.

Thanks