Updated from 7.5.6p2 to 7.5.8 2 weeks ago and since then the tweek function is odd in that as example attached shows a count of five to the right of tweek icon when in fact that post never was tweeked
All posts show the same count
If tweeking a post it then would point those who get tweeks to the URL of that post, now with this update instead the "who's online" shows them being directed instead to the Portal page
IMHO the Tweet and Facebook options that Rick added where just to appease members, the Shareaholic addon surpasses any and all expectations on the request that I ultimately harped on to get some sort of social networking features in the product.