Well, I bit the bullet and signed up at pilotsharetheride.com. Apart from having to pay for something that seems like it should be free, I was pleasantly surprised. I found quite a few pilots who fit the bill for safety pilot duties that can and do fly from KHEF. And although it is not as active as this forum (few sites are), everyone I've spoken with so far has still been interested in flying. Perhaps that is more a testament to the undying nature of pilots' love of flying, rather than to the liveliness of the website.
In any case, I'm game to get together with anyone on here that would like to look outside and log XC PIC while I get a neck ache doing hood work.