Track-n-Graph
Track-n-Graph is a web application (for Internet Explorer and Firefox - NOT chrome or safari), that let you capture data and produce column, line, and area graphs. There is an advertising supported version which allows up to 5 trackers, and a paid version which allows an unlimited number of trackers, along with the ability to import data. There is a simple cross-platform mobile version for entering data, and trackers can be embedded in other sites. A large catalog of pre-configured trackers from other users can be used as a starting point.