CSS Guidelines

Here is the key points from this open source guidelines, have not got time reading all inline links, but it is really awesome
https://github.com/csswizardry/CSS-Guidelines

• Use hyphen delimited, lowercase selectors
• Always use a trailing semi-colon on the last declaration in a rule set
• Comment as much as you can as often as you can
• If you have to build a new component, split it into structure and skin
• Never ever set heights on p, ul, div, anything. You can normally achieve the desired effect with line-heights which are far more flexible
• You should never apply any styles to a grid item, they are for layout purposes only
• Shorthand is good, but easily misused, so be explicit
• Make sure styles aren’t dependent on location where possible, and make sure selectors are nice and short
• An over-qualified selector is one like div.promo. We could probably get the same effect from just using .promo
• Be explicit; target the element you want to affect, not its parent
• Never assume that markup won’t change
• Do not use IDs in CSS at all
• It is okay to use !important on helper classes only
• Every hard-coded measurement you set is a commitment you might not necessarily want to keep
• IE stylesheets can, by and large, be totally avoided. As a general rule, all layout and box-model rules can and will work without an IE stylesheet if you refactor and rework your CSS
• The difference between IDs/classes and types/descendants is fairly huge… The difference between themselves is slight
• The key selector, as discussed, is the right-most part of a larger CSS selector. Key selector is the one which determines just how much work the browser will have to do
• Overqualified selectors make the browser work harder than it needs to and uses up its time

March stock mania

Here is the list of stock from money.cnn.com/markets/march-stock-mania/?iid=HP_LN

Apple
Zynga
McDonald's
Baidu
Wal-Mart
Sears Holdings
Pfizer
Chesapeake Energy
IBM
Netflix
Bank of America
Disney
Procter & Gamble
Groupon
Verizon
Ford
Exxon Mobil
First Solar
Citigroup
Boeing
General Electric
Green Mountain Coffee Roasters
Coca-cola
Starbucks
Microsoft
Tesla
Amazon
Caterpillar
Google
Alcoa
Intel
General Motors

Notes from Javascript in 10 mins

• You won’t run into any trouble if you always end lines with semicolons.
• Every function returns a value.If you don’t use a return statement, then your function returns undefined
• Be careful how you define a variable. Always use var keyword
• Lazy scoping and mutability. The simplest way to fix this is to wrap our assignment in an anonymous
  function that is evaluated immediately, introducing another layer of scope.
• Never use the == operator unless you really want this behavior, x == null might be an exception
• Boxed values are always truthy and can store properties. Unboxed values will
  silently fail to store properties 
• All HTML objects, whether or not they’re somehow native, will be boxed.
• Throwing things - throw new Error(3)
• Implied global variables should never be used
• In JavaScript blocks do not have scope. Only functions have scope. Do not use blocks except as required by the compound statements.  
• The eval function is the most misused feature of JavaScript. Avoid it.
• The eval function has aliases. Do not use the Function constructor. Do not pass strings to setTimeout or setInterval.