Not sure what aspect of buildings you intend to work with, but if you plan on tracing more buildings from the imagery I would highly recommend using the building tools plugin for JOSM.
Not only does it make adding new buildings much faster and easier, the resulting buildings look very nice because you automatically get nice square corners on the buildings. You can also set the preferences for the building tools in the Edit menu of JOSM so that it automatically adds as many tags as you would like. I have mine add building=yes and source=Bing.
In any case, have fun working with the project. It can be really satisfying to see your contributions used on the map, and you can know that not only are they useful on the map but the open license allows others to do neat things with the data as well. :)
May I suggest, when you add buildings, you also go out and try to add the address data? It feels so good when you enter an address in the search box and you see an arrow exactly at the house you wanted to search (contrary to Google search, who’s generally 100m off).
Discussion
Comment from AndrewBuck on 31 July 2012 at 00:03
Not sure what aspect of buildings you intend to work with, but if you plan on tracing more buildings from the imagery I would highly recommend using the building tools plugin for JOSM.
Not only does it make adding new buildings much faster and easier, the resulting buildings look very nice because you automatically get nice square corners on the buildings. You can also set the preferences for the building tools in the Edit menu of JOSM so that it automatically adds as many tags as you would like. I have mine add building=yes and source=Bing.
In any case, have fun working with the project. It can be really satisfying to see your contributions used on the map, and you can know that not only are they useful on the map but the open license allows others to do neat things with the data as well. :)
-AndrewBuck
Comment from Sanderd17 on 31 July 2012 at 13:29
May I suggest, when you add buildings, you also go out and try to add the address data? It feels so good when you enter an address in the search box and you see an arrow exactly at the house you wanted to search (contrary to Google search, who’s generally 100m off).
At least, when they will start updating Nominatim again: osm.wiki/Platform_Status
Comment from Alfred_Gulz on 31 July 2012 at 21:02
I am adding adress data step-wise in my area