The Guerrilla Guide to Interviewing (version 3.0)

http://www.joelonsoftware.com/articles/GuerrillaInterviewing3.html

The Architecture of StackOverflow

https://speakerdeck.com/sklivvz/the-architecture-of-stackoverflow-developer-conference-2013

45 Useful JavaScript Tips, Tricks and Best Practices

http://flippinawesome.org/2013/12/23/45-useful-javascript-tips-tricks-and-best-practices/

How to solve "Collection was modified; enumeration operation may not execute."?

For IEnumerable collection, need to use ToList first, so you can get same list during the iteration.

                foreach (var qs in one.QuestionSets.ToList())
                {
                    dbc.Questions.DeleteObject(qs.Question);
                }

How to convert a string to json array in Javascript?

By JQuery:

var initQuestions = '[{ "Title": "1112", "QuestionType": { "ID": 2, "Value": "1", "Text": "Text", "Selected": true}}]';
var json = $.parseJSON( initQuestions );

Reference:
http://api.jquery.com/jquery.parsejson/