Org export to html when exporting image links fails --- if you have %20 (url-encoded space) in the URL.
The anchor around the img link gets broken. Here is an example: #+ATTR_HTML: alt="Waiting to leave for White Plains" align="center" height="384" [[http://lh5.ggpht.com/-LC4N-cVAb8o/TjrW8pgkcXI/AAAAAAAACws/F0fdPijBcRE/TVJA%2520015.jpg]] If you translate the above to html through org export you get this broken markup: <p> [[http://lh5.ggpht.com/-LC4N-cVAb8o/TjrW8pgkcXI/AAAAAAAACws/F0fdPijBc<img src="http://lh5.ggpht.com/-LC4N-cVAb8o/TjrW8pgkcXI/AAAAAAAACws/F0fdPijBcRE/TVJA 015.jpg" alt="Waiting to leave for White Plains" align="center" height="384" />TVJA%2520015.jpg][http://lh5.ggpht.com/-LC4N-cVAb8o/TjrW8pgkcXI/AAAAAAAACws/F0fdPijBcRE/TVJA%2520015.jpg]] </p> Note that we didn't get a well-formed <a href="...">..</a> wrapping the image url. -- Best Regards, --raman