My first post here, I discovered the diary a few days ago.
So lets see what happened since then:
I did some improvements on the Rhine(de:Rhein) river between Bonn and Bad Honnef and - more important - added several Rhine areas between Bad Honnef and Koblenz and also between Koblenz and Oberwesel, so we have a continuous river now from the delta up to Karlsruhe.
I also added parts of the Kottenforst forest which is now almost complete in the area of Bonn, using Potlatch and its Yahoo! satellite images.
Adding forest/wood areas early in a map does'nt only look nicer, for me it's also a great help to get a good oversight of a larger area with less streets already mapped.
A Problem I see is that while Osmarender renders my forest/wood areas nicely, mapnik has serious problems with glades in forest areas as I do them.
It _always_ fails to realize which area is the actual forest and which is just a space left blank in between - this leads to forests that are not rendered with glades rendered as forests, for examples look west and east of the village Witterschlick near Bonn.
I wonder if there is a solution to this proble other than splitting forest areas?
Apart from mapping some secondary roads and residential areas in Bonn, I also managed to fix many Problems in the area using the JOSMLINT plugin for JOSM - its really much easier than staring at the maplint layer on the slippy map. :-)
By the way, I read in his diary entry that egore911 fixed the A61 around Ahrweiler. Thanks! That may have been (partly) my fault ;-).