blackhat bots

I was reading a random old thread with suggestions for tools to buy if you had $100 to spare and wanted to grow something. However the thread was 3 years old and things have changed since then. So I wonder, if you had to (hypothetically) start your journey over again, and you had $100 to spare...

So I am in the mood to build a new bot, any suggestions on what to build? and prices to sell it? i work for seo-bots and just need a project to contribute.

Hello! I am new here, so please forgive me if I commit a social feaux pas or 5. Over the past few months, I've added advertising to website, and consequently developed 'bot' software to help drive up the impressions, etc. It does okay, I guess. I'd like to let the community use this software...