Rankaware is an easy-to-use free tool which can check a website's ranking for various keywords on Google, Yahoo and Bing, then compile an attractive report showing how this changes over time.
The program has a simple Windows 8-like interface, all colourful panes and flat buttons, with the minimum number of options. Launching your first website check is just a matter of entering your site URL, the keywords you'd like to check, and the search engine region to query (Google US, UK, Japan and so on). Click Done, Rankaware checks your rankings, and displays the results in a graph or table.
The first check isn't so interesting as you only have a single rank recorded. Click Update each day, though, and Rankaware will run another scan, highlighting any change in rank over time. (Right now you must run updates manually; there's no option to schedule these, or run them automatically.)
The on-screen reports look good, but if you'd like to share the results with others then they can also be exported as a CSV or PDF file. The latter can be customised with a company name, logo, Facebook and Twitter link. It also includes a "Report generated with myrankaware.com" line, though, so might not be something you'd want to use in a business.