[intelVISA]

Is that even legal? I've built a few fast scrapers in C but I balk at the thought of selling them for some reason it feels a bit grey area to me.

[Stefan_Smirnov]

It depends. We employ a lawyer to assess risks associated with each project.

In general - as long as you don't have to login, don't infringe on intellectual property rights and don't harm targeted servers - you should be ok.