text: Google Rises in Market Debut  NEW YORK/SEATTLE (Reuters) - Shares of Google Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=GOOG.O target=/stocks/quickinfo/fullquote"&gt;GOOG.O&lt;/A&gt;  made their long-awaited stock market debut on Thursday, rising  more than 20 percent to over \$100 after an initial public  offering marked by missteps and lackluster market conditions.