I'm expert in webscraping using CasperJs + PhantomJs+Nodejs.
These powerful open source tools can do almost everything on webscraping by automatic:
+ Loging in to a dynamic website with live data
+ Clicking some links
+ Entering some data with conditions
+ Extracting, updating all the website contents and storing to files or databases
+ Runing on every OS: Windows, Linux, Mac OS with the same script.
+ No program will need to be installed on computer, just click and run.
I also have all skills on HTML, Javascript, CSS, JQuery, MongoDB, NodeJs, ExpressJs.