style="border: medium none ; display: block" width="240" height="180" /></a><span class="zemanta-img-attribution" style="font-size: 0.8em">Image by <a href="http://www.flickr.com/photos/37108241@N00/61056391">Tracy O</a> via Flickr</span></p>
<p>(by <a href="http://www.cs.vu.nl/~frankh">Frank van Harmelen</a>)</p>
<p>Besides a number of technical challenges to be solved before the Semantic Web is ready for prime time (my current top list is: scalability, heterogeneity, trust/provenance), there is also a cru