Categories Uncategorized 875442 Post author By Walter Post date September 20, 2000 No Comments on 875442 AT THE HEART OF IT ALL: THE CONCEPT OF PRESENCE, by Lombard and Ditton Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to email a link to a friend (Opens in new window)Like Loading... Related ← 875409 → 883225 Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Notify me of new posts by email. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.