Here's a simple explanation.
Other

Thanks you Simon.

For the invite.

'Other' in the Google connection might be a club, company or some such entity.

Thank you Eric for taking pitty on me and adding me on Google+

Thank you "Rolly" (thought I would use your 'other' name) for the link to the - other - explanation.
Yep, clear as . . . now

I'm a poor example of a Facebook user and not so sure that time spent with Google+ would be any more.
Maybe get into it just to have a bit of understanding of it's potential.(?)

I mean, when one has CC forums, what more in life is there?

y'all have a great day!!!

If anyone runs out of invites, I have plenty left also...