For content, video's etc... Do reviews of new hardware, software, drivers or addons, etc. The bonus there is people may send you free stuff.
Also simple how-to videos, how to fish wire, how to wire an alarm contact, how do I use one of those crazy flexible drill bits, how to do simple tasks in different software. Since everyone here is locked in to one particular brand of technology or software, it would be nice to see what else is out there, hands-on. You may not even need to do all this yourself. Maybe approach the various vendors or individuals to contribute a dog and pony show video to help market their product. Again you have the audience, show them your server stats, they get the free marketing you get to drive up your user base. I would say video is the preferred format over text of pictures. If you have to make a video slide show out of pics and text. If you need people to provide content offer a free t-shirt or something, or give away the free stuff you get from the reviews.