We need interproject links badly. I explained what I was thinking about here :
Any time, a tool bar of interproject should be found, possibly some icons. When
one clicks, he goes to the same page in another project. For example, I
mentionned the Fugu, with a short description in wiktionary; the biological and
social description in Wikipedia, the recipe in wikibooks, and possibly a whole
set of images/sounds... in wikisources.