The Splunk support portal is available at http://www.splunk.com/ (look for it under Support). The portal is where you can become a spot-on "Splunker" by creating your own account to:
Download versions of the Splunk software and updates
Join online forums and discussions
Submit support issues and/or questions
Download copies of application guides and whitepapers
Access the Splunk product roadmaps and add your own comments to the mix
Access tech updates, the SplunkVox newsletter, and lots more Splunk-related useful information
You don't have to pay anything to create an account of your own. You need to just access the website and click on Sign Up Now, as shown in the following screenshot:
Here, you just need to create a (unique) username and password (and, of course, agree to the Splunk website's terms and conditions).