I'm looking for recommendations for GIS blogs ... specifically GIS *developer* blogs. I'm less interested in the geography than in how apps are put together.

I'd like to keep up with ESRI ArcGIS as well as open source tools.

Which blogs are you fine people reading?
['https://gis.stackexchange.com/questions/32293', 'https://gis.stackexchange.com', 'https://gis.stackexchange.com/users/9795/']
Here are some GIS developer blogs (python included):

[Another GIS Blog](http://anothergisblog.blogspot.com/feeds/posts/default)

[ArcGIS & Python](http://arcgisandpython.blogspot.com/feeds/posts/default)

[Dave Bouwman](http://blog.davebouwman.com/feed/)

[Café Python](http://arcpy.wordpress.com/feed/)

[CGarrad](http://blog.cgarrard.com/feeds/posts/default)

[Dll Shepherd.Net](http://www.dllshepherd.net/feeds/posts/default)

[GIS Solved](http://gissolved.blogspot.com/feeds/posts/default)

[Guerilla GIS](http://www.redtrails.com/blog/?feed=rss2)

[Nerd tips for things you probably won't use](http://justinberke.blogspot.com/feeds/posts/default)

[Node Dangles](http://nodedangles.wordpress.com/feed/)
To read relevant Open Source GIS blogs in an integrated way, visit <http://planet.osgeo.org/>

It aggregates more than 120 blogs, among them many developers' blogs (Tip: use j/k keys to navigate easily).