USPE-L (recently renamed NASPE-L) is an e-mail listserv that provides a forum for physical educators to discuss their teaching and programs--and offer collegial support that may not be immediately available in a local community. This study used two sources of data collection including an e-mail survey (N=113) and follow-up phone interviews (N=10) to explore the influence of participation on the USPE-L listserv on the self-described teaching practices of K-12 physical education teachers. Benefits and limiting factors of participating on the listserv were analyzed. Findings indicated that participation on the listserv was reported to be a valued resource leading subscribers to new teaching activities, curricular materials, and reduced feelings of isolation. Findings also indicated a need for listserv etiquette as teachers new to this electronic forum reported a reluctance to share ideas when their postings appeared to be harshly criticized or questioned. (Contains 1 table, 1 figure and 1 note.)