Check my signature for the best Online Portfolio Manager Software. You can point every domain to it's own landing page. Of course all the pages are similar apart from the text you change with every domain. It doesn't look up the whois, so you need to manually edit those renewal dates each year. Every software which has tried this has failed (apart from DomainPunch.com) which is both an offline or online tool. But the online tool is rather expensive, at $950, the last time I checked. It doesn't do sales so no landing pages. But I use the offline tool (about $130) in conjunction with my free portfolio software. They are not connected in any way.