ReadyPoint

Are you ready to migrate to SharePoint 2010?  Find out with ReadyPoint.
ReadyPoint scans your SharePoint 2007 environment to tell you how ready you are to upgrade to SharePoint 2010. And best of all, it's free. Find out more.

Freeware Tools for SharePoint Administrators:

PinPoint
A free tool for identifying your most popular and largest SharePoint sites and documents. You can use information from PinPoint to more closely follow your organization's SharePoint governance plan.  Find out more.

Outlook Power Tool Plus
A free tool for SharePoint that enables you to handle multiple documents from your document library at once. Selected documents can be moved,copied, deleted, or sent as links or attachments in large batches rather than one at a time.  Find out more.

SharePoint Spy
This powerful free tool will allow you to "spy" into the internal data of SharePoint and compare the effects of making a change – like a toggle switch between the two versions so that you can review the changes before committing to them.  Find out more.

Sub Sites Web Part
This is a very simple, but useful web part that shows all the sub webs for the current user.  Find out more.