*****  To join INSNA, visit http://www.insna.org  *****

Time, as Barry intimates and Gould wrote, does seem more of a circle 
than an arrow! I published a piece in Canada in 1984 focused on both 
service delivery networks and interorganizational ties. It was titled 
"Blockmodel Analysis of Fragmentation in an Interorganizational 
Delivery System" and was published in Canadian Social Work Review. The 
data comprised a matrix of ties among and between something like 30 
organizations in Hamilton, Ontario. My co-author was Greg Heil, and the 
analysis was done using a variation on his original program Blocker, 
which I believe was developed with Harrison White. Greg actually 
designed a goodness-of-fit index for the study, which may have been 
among the first. We were exploring how to construct dynamic approaches 
to analyzing network data when I left for the US in 1990.

David J. Tucker
Professor of Social Work
Adjunct Professor of Sociology
University of Michigan

Quoting Barry Wellman <[log in to unmask]>:

> *****  To join INSNA, visit http://www.insna.org  *****
>
> Everything old is new again:
>
> There has been recurrent interest in social networks and social work
>
> 1. Service delivery networks. Interorganizational ties. I don't know much
> about this, but several folks took my Networks 4 Newbies intro course at
> the Sunbelt.
>
> 2. Social support studies. (as others have mentioned, also big in
> community psychology). There's a lit review on this from the 1990s on my
> website (or if not, tell me and I'll put it there), and also, Wellman &
> Wortley, "Different Strokes from Different Folks" (AmJSoc, 3-90).
>
> But for a serious search, let me remind you that INSNA went to some
> trouble and expense a few years ago to put all of Connections on the web.
> It's searchable, folks!
>
> Barry
> _____________________________________________________________________
>
>  Barry Wellman         Professor of Sociology        NetLab Director
>  wellman at chass.utoronto.ca  http://www.chass.utoronto.ca/~wellman
>
>  Centre for Urban & Community Studies          University of Toronto
>  455 Spadina Avenue    Toronto Canada M5S 2G8    fax:+1-416-978-7162
> 	     To network is to live; to live is to network
> _____________________________________________________________________
>
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