add '$' section to contrib, add new frontends

contrib.html

@@ -104,6 +104,29 @@
       list</a> informed of your plans.
     </p>
 
+    <h2>Hiring a developer</h2>
+    <p>
+      Some SANE developers have been known to produce backends in exchange for
+      hardware or money. Cost would depend on the developer and the scanner, but
+      could be quite high if the protocol is obtuse or lacking documentation. As
+      a general rule, the cost of the backend is inversely proportional to the
+      cost of the scanner. Cheap USB or parallel-port scanners can take hundreds
+      of hours of frustrating work, only to extract poor quality images. Costly
+      SCSI (or SCSI-over-USB) scanners are generally much easier to support, and
+      their vendors are generally more open with documentation.
+    </p>
+    <p>
+      If the scanner is rare or expensive, you may need to provide hardware
+      access. Physical access is significantly easier, but remote shell may
+      suffice. If these cannot be arranged, expect to provide packet dumps of
+      the device in action using a protocol sniffer.
+    </p>
+    <p>
+      If the resultant code is derived from SANE, note that it will still be 
+      covered by the GPL/SANE license. Please contact the 
+      <a href="mailing-lists.html">sane-devel mailing list</a>
+      for more info and to find interested developers.
+    </p>
 
     <h2>Reporting Bugs and Missing Features</h2>
     <p>

sane-frontends.html

@@ -83,8 +83,13 @@
       </li>
 
       <li>
-	<a href="http://kooka.kde.org/" target="_top">Kooka</a>
-	- KDE frontend for sane
+	<a href="http://kooka.kde.org/" target="_top">Kooka/libkscan</a>
+	- KDE 3.x frontend for sane
+      </li>
+
+      <li>
+        <a href="http://docs.kde.org/development/en/extragear-graphics/skanlite/" target="_top">Skanlite/libksane</a>
+	- KDE 4.x frontend for sane
       </li>
       
       <li>
@@ -121,13 +126,19 @@
 	- Graphical frontend based on Qt 2.2.x (discontinued since 2004)
       </li>
       <li>
-	<a href="http://sane-pygtk.sourceforge.net/index.html">sane-pygtk</a> - a minimalistic 
-	SANE (Scanner Access Now Easy) graphical front end. It uses PIL (Python Imaging Library)
-	as the python binding to SANE, and PyGTK as the graphical user interface library.
+	<a href="http://sane-pygtk.sourceforge.net/index.html">sane-pygtk</a>
+	- a minimalistic SANE graphical front end. It uses PIL (Python Imaging
+	Library) as the python binding to SANE, and PyGTK as the graphical user
+	interface library.
       </li>
       <li>
-	<a href="http://gscan2pdf.sourceforge.net/">gscan2pdf</a> - a GUI to produce a
-	multipage PDF from a scan.
+	<a href="http://gscan2pdf.sourceforge.net/">gscan2pdf</a>
+	- a GUI to produce a multipage PDF from a scan.
+      </li>
+
+      <li>
+        <a href="http://sourceforge.net/projects/opendias">openDIAS</a>
+	- a document imaging &amp; archive project.
       </li>
 
     </ul>