The CMS-lite-like (and darned-near life-like) Community Server Content Part is the easiest thing in the world to add to your Community Server pages. This nuglet addresses specifically how to add inline editable content to your CS home page sidebar, and secondarily, how to duplicate the contents of a content part on a page.
Any content part is added with the following ASP.NET code. The only things to remember here are to ensure that both the contentname and id are unique.
<CS:ContentPart runat = "Server" contentname="contentPartID" id = "ContentPart1" text="default text" />
We're going to add a "Yousa" content part to the home page sidebar, so we wrap it in the following HTML to match other sidebar elements.
<div class="CommonSidebarArea">
<h4 class="CommonSidebarHeader">My Yousa Content Part</h4>
<div class="CommonSidebarContent">
<CS:ContentPart runat = "Server" contentname="yousaPart" id = "ContentPart1" text="Yousa!" />
</div>
</div>
When logged in as site administrators we will have full inline editing capabilities of that content area.
And as my good friend The Wizard says, set it...and forget it!
The original question that inspired this nuglet asked how to duplicate that content part on another area of the page. To do that you would have to add a mod to display the contents of the cs_content.Body field contents inside the HTML anchor tags in something like a literal ASP.NET control. Displaying two content parts with the same name and javascript wrappers will result in an error.