Employment agencies, career fairs, and internet ads can all provide work permits, school-to-work programs, résumés, and job leads.

Answer: Employment agencies, career fairs, and internet ads are different resources that job seekers can use to find employment opportunities. However, I’d like to clarify that while they can provide information on job leads and sometimes help with résumés, these resources do not typically provide work permits. Work permits are usually issued by government agencies. Here is how each resource can help in a job search:

1. **Employment Agencies**: They specialize in connecting job seekers with employers. Some agencies focus on temporary job placements, while others may offer permanent positions. They can assist with résumés and provide job leads that match the job seeker's skills and experience.

2. **Career Fairs**: These are events where multiple employers gather to meet potential employees. Job seekers have the opportunity to network, learn about various organizations, and sometimes interview on the spot. Career fairs can be a great place to distribute résumés and gain insights into different companies and industries.

3. **Internet Ads**: Online job advertisements are posted on various digital platforms, such as job boards, company websites, and social media. They provide a wide range of job leads that job seekers can apply for. Many websites also offer resources on creating effective résumés and may have tips for job seekers on how to obtain work permits, if necessary.

4. **School-to-Work Programs**: These programs are partnerships between educational institutions and employers. They are designed to provide students with work experience that relates to their field of study. Alongside practical experience, these programs can also combine academic learning with on-the-job training, which can lead to job leads after program completion.

Extra: Understanding each of these resources can be incredibly beneficial for students who are about to enter the workforce:

- **Employment Agencies**: They often have access to job listings that may not be advertised elsewhere. They can also provide guidance and help tailor your résumé to better suit the positions you're applying for.

- **Career Fairs**: Attending these can help you learn about different industries, the types of roles available, and what employers are looking for. It's a great opportunity to practice speaking with employers and to learn about the job market.

- **Internet Ads**: The internet has a vast array of resources for job seekers. Websites like Indeed, LinkedIn, and Glassdoor allow you to search for jobs, research companies, and apply for positions directly online. They can also offer valuable advice for writing résumés and cover letters.

- **School-to-Work Programs**: If you're still in school, these programs can be valuable for gaining practical experience in your field of interest. They can help bridge the gap between theory learned in the classroom and real-world application, making you a more competitive candidate upon graduation.

Remember, while work permits are usually required for working in a foreign country or, in some places, by minors who want to work, they are typically issued by government entities and not by the resources mentioned earlier. Employment agencies and career support services can guide you on how to go about obtaining a permit if one is necessary for your situation.