diff --git a/ChangeLog b/ChangeLog
index 60fa4e014..4756d20bd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2006-08-04  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/Contacts/SOGoContactSource.h: new "SOGoContactSource"
+	protocol defining an API common to all possible types of contact
+	sources.
+
 	* SoObjects/Contacts/SOGoContactFolders.[hm]: new class module
 	serving as the root of the contact folders available to the
 	current user. Correctly lists the contact sources in webdav.
diff --git a/SoObjects/Contacts/SOGoContactSource.h b/SoObjects/Contacts/SOGoContactSource.h
new file mode 100644
index 000000000..8a2b5b1c7
--- /dev/null
+++ b/SoObjects/Contacts/SOGoContactSource.h
@@ -0,0 +1,36 @@
+/* SOGoContactSource.h - this file is part of SOGo
+ *
+ * Copyright (C) 2006 Inverse groupe conseil
+ *
+ * Author: Wolfgang Sourdeau <wsourdeau@inverse.ca>
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef SOGOCONTACTSOURCE_H
+#define SOGOCONTACTSOURCE_H
+
+#import <Foundation/NSObject.h>
+
+@class SOGoContactRecord;
+
+@protocol SOGoContactSource <NSObject>
+
+- (SOGoContactRecord *) lookupRecordWithId: (NSString *) recordId;
+
+@end
+
+#endif /* SOGOCONTACTSOURCE_H */