Certainly. If this is just a static link, ie the link is always the same no matter what the results are, then you can use StaticContentSample:
<module name="StaticContentSample">
<param name="text"><![CDATA[
<a href="http://sideviewapps.com">my test link</a>
]]></param>
</module>
Or you could use the ServerSideInclude module instead of StaticContentSample. In that case you set a 'src' param instead and you give it the name of a static html file in /etc/apps/<appname>/appserver/static. (dont make it a full HTML file with a <head> and <body> and everything -- just make it a little fragment of well-formed HTML.)
And if it's a dynamic link, meaning part of the URL or maybe one or more of the querystring args a) depends on some values in form elements, or b) depends on some field value(s) from the search result, then you'll want to use Sideview Utils module - HTML because it can do that and more.
