Possibly the best book on writing nonfiction. I'm sure this would apply to science. On Writing Well by William Zinsser
Also, reading science will always help. I love Carl Sagan's books like Broca's Brain.
I'm not sure what field your in, but I'm thinking that your SOL if you want to analyze larger data sets. I've never used datascape, but you're probably going to want a stats program. R is free and you can pretty much find any paper online that tells you how to look at your data R's website here. I know it's really not what you're looking for, but, at least in my experience, if you want to visualize large datasets, you have to put some effort into it.
I really hope someone has a better solution for you because it would help me out as well at times. Good luck!
Here's a 'proof' that you're wrong.
http://www.wolframalpha.com/input/?i=sqrt%5B69%5D%3D%3D+8%2B5%2F17
But that's really just one example. Essentially you're saying roots of numbers are rational, or that they can be rationalized, which is, in fact, very wrong.
Think how would you do a square root of 2*, for instance, and what you would get out. Then, search for a proof of why root 2 is not rational.
*Root of 2 is usually given as an example of why roots are usually not rational.
I think that most people now who want more functionality use qualtrics. I've never used it personally, but they'd be your competition if you tried to do something like this.
The main feature I need in my web-based surveys is HIPAA compliance, so I write them myself (python, SQL) and host them under multiple layers of security on our lab's server.