"AD Tidy is a completely free tool that I created to help other IT Pros out. It can be used to identify when user/computer accounts last logged on to the network and can tidy up these accounts in various different ways."

Enter your configuration and environment details and it will return step by step instructions for migrating to Exchange 2010.

"Thinware vBackup™ is an enterprise grade backup solution for virtual infrastructure that can be easily implemented in any environment." VMware virtual machine backup, similar to Veeam in concept but Free option (although much fewer features). May be useful in lab scenarios or very low-budget environments.

Adding a User Principal Name, or UPN, to Active Directory lets you match user logon names to email addresses, for example, among other things. This page describes how to add a UPN to Active Directory, so you can assign the alternate name to a user in Active Directory Users and Computers.

xNeat clipboard manager (free) is handy and very simple to use. it captures clipboard items as they are copied to the Windows Clipboard, and you can simply bring up a menu containing all (up to user-definable limit, default of 10) the previously copied items and select the item you want to paste from it using a hot key (by default, Ctrl+Shift+V).

Describes what split DNS is and how to configure it.

Open source content and asset management software called Pimcore, written in PHP.

"I recently learned something about NASes that buyers looking to use these products for database and other simultaneous-file-access applications should know about. The issue is how Opportunistic Locking ("oplocks") are handled." "Opportunistic locks (oplocks) are a characteristic of theLAN Manager networking protocol implemented in the 32-Bit Windows family of operating system environments. Bascially, oplocks are guarantees made by a server for a shared logical volume to its clients. These guarantees inform the Client that a file's content will not be allowed to be changed by the server, or if some change is imminent, the client will be notified before the change is allowed to proceed."

"What browser am I using? Which Operating System (OS) am I using?"

"Screenpresso overrides the Print Screen key and makes it easy to take the best screen captures in a few seconds."

"KiTTY is a fork from version 0.60 of PuTTY, the best telnet / SSH client in the world." It adds many additional useful features to the original PuTTY application.

"Racktables is a nifty and robust solution for datacenter and server room asset management. It helps document hardware assets, network addresses, space in racks, networks configuration and much much more!" HT to @wantmoore for the find

"Stashboard is a status dashboard for APIs and software services. It's similar to the Amazon AWS Status Page or the Google Apps Status Page. Stashboard was originally written by Twilio to provide status information on its Voice and SMS APIs. Stashboard is designed to provide a generic status dashboard for any hosted service or API. The code can be downloaded, customized, and run on any Google App Engine account."

"ArcSight Logger is the first Universal Log Management solution that unifies searching, reporting, alerting and analysis across any type of enterprise log data, making it unique in its ability to collect, analyze and store massive amounts of data generated by modern networks. It supports multiple deployment options and can be deployed as an appliance and as software."

"The following is a list of common Exchange Server 2010 features that are managed in the Exchange Management Console (EMC), as documented by Microsoft."

Free/Open Source project management portal. Located via http://churchit.com/teamlab-a-free-project-management-portal/.

"How to create a Multiboot USB Flash Drive that you can use to Boot Multiple ISO Files from USB."

"Finally, and somewhat overdue, here is the vReference card updated for vSphere 4.1. At first glance it looks the same, but there was quite a few little additions here and there."