BitMeter
BitMeter 2 is a bandwidth meter, it allows you to visually monitor your internet connection by displaying a scrolling graph that shows your upload and download speed over time. BitMeter is freeware - ie. it is given away completely free of charge, there is no trial period, no time-limited... Change graph type (bar or line graph). ... Configurable graph scale - set to any value, or set to auto-adjust according to your speed. ... Option to display current graph maximum on screen. ... BitMeter displays a coloured graph showing your upload and download speeds, the display updates every second,...
http://codebox.no-ip.net/controller?page=bitmeter2dl - 1,011Kb - Download - Screenshot

MasterChart
Easy to use . NET charting controls for ASP. NET and Windows Forms applications. The package includes Graph, Line, Area, Bar and Pie Chart components. Each of them can be fully customized via the hundreds properties and methods exposed. All controls support data-binding for fast and easy... The MasterChart component · Redistribution is royalty free; · Assembly is strong-named; · Is digitally signed; · Can be purchased with source code; · Is written in C#; Line/Area charts · No limits for the count of graphics per chart; ·...
http://nocache.mindfusion.org/MasterChartDemo.zip - 2Mb - Download - Screenshot