75 percent of jobs are never advertised. So how can you find these gigs? Better yet, how can you get hired for them?

Career coach Nimish Thakkar offers three strategies that have worked for job seekers. In some cases, the jobs they got didn't even exist before they were hired.

Every Friday we round up the salary trends, career stories and job news that you may have missed during the past week.

A lot, it turns out -- if it's done correctly.

Fast Company had a great piece recently that should help companies that are thinking of implementing a flexible work policy. (Most companies offer at least some kind of informal flexibility, according to a recent study by Familes and Work Institute.)

By Adam Phillabaum, @adamb0mb

We released some new code on Tuesday, so we decided to go for a little hike on Thursday. The chosen target: Mailbox Peak. This was a pretty ambitious hike: 4,000' of elevation gain over 3 miles. Basically, it's like walking up stairs.

It was a great hike, but I'll let the pictures do most of the talking:

Career-minded mothers-to-be have one more reason to cut back on working overtime during pregnancy: their babies' size. New research published in Occupational and Environmental Medicine found that women who worked over 40 hours a week were more likely to give birth to smaller babies than women who worked 25 hours a week or less. Additionally, women whose jobs required them to be on their feet all day also had smaller babies than those who did more sedentary work. This disparity, according to WebMD, was discernible from the third trimester on.

What are the best interview questions for applicants to ask their interviewer? Alison Green of U.S. News and World Report tackled that thorny query and came up with a comprehensive list that will help applicants gauge company culture, the position's distinct challenges, how the incumbent will be managed and developed, and the firm's turnover rate.

The good news: Successful women in the fields of business, law and medicine are the only social group that has lost weight over the last 15 years. The bad news: That weight loss is because they feel they must be thin to get ahead. Even worse: a new study confirms that overweight women are worse off than their thinner counterparts when it comes to others' assessment of their professional potential.

Could employee fitness soon be valued as much as sales? At women's athletic wear company Title Nine, that day is already here. Chief executive Missy Park and the fitness-focused culture she's founded at Title Nine were recently profiled in the Wall Street Journal, and some of her strategies are downright revolutionary.

Q: What are some challenges you did not anticipate when deciding to start your own business?

The following answers are provided by The Young Entrepreneur Council (YEC), an invite-only nonprofit organization comprised of the world's most promising young entrepreneurs. The YEC recently published #FixYoungAmerica: How to Rebuild Our Economy and Put Young Americans Back to Work (for Good), a book of 30+ proven solutions to help end youth unemployment.

1. Cash Flow Is a Common Struggle

We started with clients from day one, so we've always been profitable, but one thing we didn't think about when we started was cash flow. Many profitable businesses experience famine and feast, due to invoice scheduling or higher sales during certain parts of the year. You must have a plan to spread profits from the most profitable times to cover times when cash flow is slower.
- Allie Siarto, Loudpixel

Bosses in the U.S. and Europe are far less strict about employee punctuality than they used to be, according to new research, and the rapid adoption of cloud services, mobile productivity solutions and smartphones is partially to blame. Mozy, a data protection company, studied 1,000 employees and employers and found that 73 percent of managers are understanding about late arrivals. Considering the amount of time employees are putting in outside of the standard 9-to-5 workday, they have no reason for concern.

Company outings like lunches, nights out, coaching and buddy programs may be costly, but they're well worth the investment. A positive, engaging company culture yields effective, engaging service and overall growth. Mashable recently outlined several reasons business owners should invest in company outings; what follows are some of the key themes.

Looking for a job? Don't take all those party photos off your Facebook profile just yet. Although some photographic evidence will always be a bad idea (read: anything that could put you in jail) a little bit of color in your social media presence might actually help you get a job.

A six-figure income used to be a hard-earned sign of success, but due to skyrocketing costs and inflation, $100,000 doesn't have the cachet it once had. Crunching the numbers for standard inflation, it would take $172,000 in 2011 dollars to match a $100,000 salary in 1990.

Digital stress abounds in today's tech-centric society, and this infographic from Online Universities explores the impact such stress has on the brain. We consume significantly more media than we did 50 years ago -- 12 hours per day in 2010 compared to just five hours per day in 1960. What's more, we're multitasking far more than we used to, and that's where the trouble lies.

Here's another reason to go to college. Jobs for "unskilled" workers -- in other words, folks without a secondary or college education -- are in global decline. A recent study by the McKinsey Global Institute predicts that 90 to 95 million workers won't be needed by employers by the year 2020.

Google Maps Coordinate, the latest addition to the Maps app, was designed to enable managers to keep track of their mobile workers by visualizing their location on a map. Leaders can use the service to create jobs, while employees can claim new assignments, check in at job sites and update the status of jobs in progress. Users can mark themselves as "invisible" during breaks or other periods of unavailability, and there's also a time-centric system that logs users out at the end of their scheduled shift.

Thinking of changing jobs? If you're like most people, you're probably contemplating a switch to something with more available positions, better hours, or higher pay -- bonus points if you don't have to spend a lot of cash on retraining. But whatever you're planning, it's probably not as big a change as the ones these famous folks made.

How is interviewing for a job like dating? Nowadays, in just about every way, according to Vera H-C Chan at Yahoo News.

A surplus of potential employees and a shortage of jobs has put employers in the catbird seat in recent years. As a result, they're acting much like sought-after prospective mates.

Every Friday we round up the salary trends, career stories and job news that you may have missed during the past week.

Hey, software developers, web developers, web designers – you’re in demand! It’s estimated that by 2018, there will be roughly 1.4 million tech-related job openings in the U.S., but the country won’t have enough college graduates to fill even 30 percent of those positions.