I have been look around for Free/Open Source ASP.NET CMS / Portal systems for a while now, and have seived it down to two different ones.
Umbraco - http://umbraco.org
mojoPortal - http://www.mojoportal.com
Both look excellent and have different appealing features, but I am looking for people who have used both and which one you went with and why??
mojoPortal seems easier to use to me and it works even with javascript disabled like using noscript browser plugin. Seems more care of accessibility has been taken using progressive enhancement javascript techniques whereas you can't manage your site at all with javascript disabled using Umbraco.
I haven't tried mojoPortal, but I love Umbraco.
Things I like:
But really its because I can use it for both small and large projects easily.
I tried Umbraco and it is not for the timid. I feel I'm a fairly technical person, Sr. Web Developer... and after several hours I gave up.
MojoPortal just works.
It has its flaws, but the simple fact that it just works means it wins.
The latest version of MojoPortal is fantastic. Joe really keeps it up to date. I did try Umbraco but as the previous poster said it is not for the timid.
I actually went for Umbraco in the end and would never look back, its incredibly easy to install and use
To install you can use the web platform installer to install it and the AMAZING amount of free projects you can EASILY install with a couple of clicks make it by far the best CMS out there
http://our.umbraco.org/projects
If you are unsure where to start have a read of this
http://www.blogfodder.co.uk/post/A-Complete-Newbies-Guide-To-Umbraco-CMS.aspx
I have not used Umbraco, but just judging from my experience with mojoportal...
it really depends on what you're looking for, mojoportal is a souped up package for admins to deploy contents to the web, it is good for a quick content publishing site. But if you're talking about building a good commercial platform, I'd go with something more extendable, Dotnetnuke is also worth considering.
I used Kentico, DNN, Sitecore, Joomla, CMS Made Simple (Yes admittedly not mojoPortal). Umbraco is by far the most powerful if you are after a highly customised and highly specified solution. Linq2Umbraco just seals the deal.
However, if you are after idiot proof CMS with everything built in, and your biggest concern is to look for check boxes to enable forum/blogs/whatever other joke modules/bells and whistles/etc. Umbraco isn't for you. IMO Kentico/DNN are the ones.