This Winter 11, there is a new chatter component which allows you to embed chatter feeds in a Visualforce page.
Here is the official release notes and further details. Click here
Here is a sample visualforce page using this component. This page displays the feeds for the current logged in user.
Here is the official release notes and further details. Click here
Here is a sample visualforce page using this component. This page displays the feeds for the current logged in user.
<apex:page >
<chatter:feed entityId="{!$User.Id}"/>
</apex:page>
Note that the "entityID" attribute determines the feeds to be displayed. This can be a UserId, a custom or standard object record ID provided chatter is enabled for that object.
You may also create a Visualforce page with this component, and then create a home page sidebar component and embed the Visualforce page in the sidebar component.