For the last couple months, twenty or so members of the dogpark have been using the "whatsapp" application on their smart phones. We've been very happy with how this has worked.
Here's an example:
On a sunny Wednesday afternoon, at around 1 p.m., Chris sent a message "Tomas and I plan to swing by the park around 4:45." Three people responded by 3 p.m.: "I can come around 5:15", "Count me in." "We'll be there around 4:45." And four dogs (and four people) had a pleasant time.
As the weather (and mud) improve, whatsapp will be increasingly useful to us.
But the more people that use it, the more useful it is to everyone.
It is not intrusive: everytime somebody sends a message all participants get the message, but you control (on your phone) whether the message triggers a ring (or sound) or a vibrate, or nothing.
And if you discover that you don't like it, you can withdraw at any time.
And it is free (at least for now; there may be a small charge after the first year).
So do these three things:
1. Send an email to Kelly Frederick (Shiloh) (email@example.com) and ask her to add your email to the Whatsapp group.
2. Download the Whatsapp application to your i-phone or smart phone.
3. Use it to arrange meet-ups at the dog park.