The correct answer to this open question is the following.
The Ladders is a career search site specializing in high income ($80k+) job placement. Their headline, "Your career is our job," indicates to the customer the company will work hard until you are satisfied. The visual layout of its website also indicates organizational clarity to speed you toward your new job. This website has done a good example of conveying a value proposition.
In business, a value proposition can be the difference between being chosen by a customer or not. In these days of hard competition between companies that offer similar products and services, a valid and interesting value proposition can be very useful. But be careful, be ready to fulfill your promise because if not, you lose credibility and this impacts your reputation. Your value proposition must be true, relevant, of quality, and has to be different from the competitors.