Block Netcaptor
Netcaptor, like other browsers, blocks ad banners - and 'Ads By Google'. I use Google Adsense to pay for one of the sites I run, and I'm not impressed that Netcaptor thinks it will, by default, block Google AdSense: so I've blocked them from using that site.
Place the following code right at the beginning of your web-page.
<? if (strstr(getenv("HTTP_USER_AGENT"),"Netcaptor")) { echo "<HTML><HEAD><TITLE>Browser blocked</TITLE><META NAME='ROBOTS' CONTENT='NOARCHIVE'></HEAD><BODY BGCOLOR=white><P><font face='Verdana' size=4 color='#000066'><B>Browser blocked</b></font></p><P><font face='Verdana' size='2' color='#000066'>Sorry. This website blocks Netcaptor, because it blocks the ads that we use to pay for this service.<BR><BR>Please use an alternative browser, like <a href='http://www.mozilla.org'>Mozilla Firebird</a>, which offers the same functionality as Netcaptor, but without stopping us having the chance of paying for your visit.</font></p></BODY></HTML>"; die; } ?>