You can embed the Flex Showcase widget in your own blog or website. Simply use the following code to embed the application:
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="FlexWidget" width="640" height="500"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie" value="http://flex.org/widget/FlexWidget.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#869ca7" />
<param name="allowScriptAccess" value="sameDomain" />
<embed src="http://flex.org/widget/FlexWidget.swf" quality="high" bgcolor="#869ca7"
width="640" height="500" name="FlexWidget" align="middle" play="true" loop="false" quality="high" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>

Here is what that will look like: