I started messing around a little bit with Trendrr last week and was very impressed with its options and functionality. Basically, Trendrr mashes multiple lightweight and mostly free Web trend tracking tools (over a dozen data fields including Google, Technorati, FeedBurner, Quantcast, YouTube etc) and lets you easily drag output graphs from these trends into a single graph with an easy interface, making comparisons really easy. The free version lets you make 20 graphs tracking one or multiple query terms. You can share those graphs with others pretty easily — not that this is very hard to build but its a nice feature. While Trendrr does not have the deep feature sets of the truly pro Web tracking and brand measurement suits of software, it’s a lot cheaper and can probably do 80% of that those pro versions do. Trendrr also has better breadth of coverage — the range of online tracking mediums is very impressive. I drove it through a couple of trend terms and could definitely see how this would be useful to both DIYers and brand managers seeking to get insights into causalities between trend terms and events or just general buzz patterns. It’s not grandma-ready yet — the initial start up interface is a little bit hard to understand and the help section is somewhat sparse. But this will be a very interesting vehicle and I look forward to using it more. There is an enterprise version, as well (freemium model), the allows for unlimited graphs and much more robust term reporting capabilities. You can export the raw data into CSV, spreadsheet, or other common export mechanisms. Regardless, start with the free one to check it out and make sure it works for you and then move up the paid version.