Calling a Remote Web URL from Salesforce

http://web.npowerseattle.org/cps-development

Next, create an apex class that calls it:

global class UpdatePlone {
    webservice static string UpdateDirectory(id conId) {

        // plone url for directory updates
        final string url = 'http://www.communitiesconnect.org/updateDirectoryEntry';

        // notify plone that the account has changed
        system.debug('Sending update request for: ' + conId);
        system.debug('To URL: ' + url);
        HttpRequest req = new HttpRequest();
        req.setEndpoint(url + '?Id=' + conId);
        req.setMethod('GET');
        Http http = new Http();
        HTTPResponse res = http.send(req);
        return ('Salesforce sent this to Plone: ' + url + '?Id=' + acctId + ' ...and Plone said this: ' + res.toString());
   }      

   static testMethod void TestAccountCreate() {
        contact c = new contact(lastname='Test');
        insert c;
        UpdateDirectory(c.id);
   }
}

Finally, create a contact button or link. Tell the button to run the following OnClick JavaScript:

{!REQUIRESCRIPT("/soap/ajax/11.0/connection.js")}
{!REQUIRESCRIPT("/soap/ajax/11.0/apex.js")}

var result = sforce.apex.execute("Main","UpdateDirectory", {conId: "{!Contact.Id}"});

if (result.toString().indexOf("Status=OK")==-1) {
    alert('Directory Update Failed! \n\n' + result);
} else {
    alert('Directory entry was successfully updated.');
}

Add the button or link to the layout. Voila!