If you're looking for good advice on JavaScript programming, take a look at <a href="http://www.faqts.com/knowledge_base/index.phtml/fid/53/">javascript.faqts</a>, which offers a massive list of questions and answers about JavaScript, including many samples and snippets organized by topic. <h>Yahoo goes Open Source</h> <img src="{att_link}1up.gif" class="frame" align="right">The <a href="http://developer.yahoo.net/yui/">Yahoo! User Interface Library</a> offers all of Yahoo's JavaScript controls, packaged and ready for download as Open Source. It includes GUI-level components for handling <a href="http://developer.yahoo.net/yui/dragdrop/index.html">drag & drop</a>, or building <a href="http://developer.yahoo.net/yui/treeview/index.html">treeviews</a> or <a href="http://developer.yahoo.net/yui/calendar/index.html">calendars</a> as well as low-level components for managing AJAX <a href="http://developer.yahoo.net/yui/connection/index.html">connections</a> and browser <a href="http://developer.yahoo.net/yui/event/index.html">events</a>. On top of that, they've also released the <a href="http://developer.yahoo.net/ypatterns/">Yahoo Design Pattern Library</a>, which offers hints and strategies for implementing common web application tools, like <a href="http://developer.yahoo.net/ypatterns/pattern_breadcrumbs.php">breadcrumbs</a> or <a href="http://developer.yahoo.net/ypatterns/pattern_autocomplete.php">auto-completion</a>. Whereas there are other cross-platform libraries out there, Yahoo has done an excellent job of preparing their tutorials.