One common     Two groups      Individual
connector                      resistors
-------+        -------+        -------+
       |               |               |
--XXXX-+        --XXXX-+        --XXXX-+     
       |               |
--XXXX-+        --XXXX-+        -------+
       |               |               |
--XXXX-+        --XXXX-+        --XXXX-+
       |
--XXXX-+        -------+        -------+
                       |               |
                --XXXX-+        --XXXX-+
                       |
                --XXXX-+        -------+
                       |               |
                --XXXX-+        --XXXX-+

Resistor chain

+-XXXX-+-XXXX-+-XXXX-+-XXXX-+-XXXX-+-XXXX-+-XXXX-+-XXXX-+-XXXX-+
|      |      |      |      |      |      |      |      |      |

Then there is DIL networks

Invididual      Single chain          Dual chains, possibly
resistors                             with other placement of commons
--XXXX--        -------+-XXXX--        -------+  +-------
                       |                      |  |
--XXXX--        --XXXX-+-XXXX--        --XXXX-+  +-XXXX--
                       |                      |  |
--XXXX--        --XXXX-+-XXXX--        --XXXX-+  +-XXXX--
                       |                      |  |
--XXXX--        --XXXX-+-XXXX--        --XXXX-+  +-XXXX--
                       |                      |  |
--XXXX--        --XXXX-+-XXXX--        --XXXX-+  +-XXXX--