Atlantic Research Technologies -- a worldwide executive search firm for the high-tech (Net, e-commerce, IT, software, telecom, others), manufacturing, and service industries that focuses on recruiting industry-experienced upper and middle managers.

TheBoard.com -- matches leading scholars and industry experts with companies needing advisory or director boards. Also offers executive placement services for Boards of Advisors or Directors as well as C-Level executives for start-ups through Fortune 500 companies. Complete confidentiality. Free to job-seekers.

BoardSeat -- if you're an executive, professional, or academic looking for a spot on a board of directors or advisory board, then this is the site you need to visit. Client companies include start-ups, venture-backed companies, public companies, and non-profits. Free to candidates.

CEOTRAK Executive Career Network -- a powerful job and career site for senior-level executives and professionals. Job-seekers can view featured job listings or search the job database (industry, function, and location), as well as create a career profile. Also include an email job alert and networking opportunities. Free to job-seekers.

ChiefMonster -- a division of the very successful monster.com devoted exclusively to senior executives. Job-seekers must meet or exceed certain qualifications to become a member. Very interesting concept. Registration required. Free to job-seekers.

CEO Job Opportunities Update -- from associationjobs.com. Where top managers seeking CEO and senior staff positions with associations, foundations, and nonprofit organizations can find job listings -- on average, about 120 new openings per issue. Fee-based.

ExecGlobalNet.com -- a site for executives and managers ($50,000+ annual salary) who want to explore new career opportunities without jeopardizing your current job.You can choose simply to search jobs posted by executive recruiters or you can post your profile (which does not include your resume) to make it accessible to executive recruiters. Also includes some great career resources specifically for managers and executives. Free to job-seekers.

ExecSearches.com -- a site for middle, executive, and director level job-seekers looking for non-profit and public sector employment in higher education, health, advocacy, philanthropy, government, social and human services, and community and economic development. Search jobs by keyword, function, industry, and region. You can also take advantage of a matching service and find career resources. Free to job-seekers.

ExecutiveBizJobs.com -- a job site for Washington, D.C., area executives, where search job listings (by job category, location, keywords) as well as post your resume. No cost to job-seekers.

Exec-U-Net -- the self-proclaimed premier career management information service and career advancement organization exclusively for executives and senior professionals with salaries in excess of $100,000. For job-seekers in the fields of general management, finance, sales, marketing, human resources, operations management, R&D, engineering and MIS. Fee-based.

ExecutiveAgent.com -- where successful executives can have your resumes sent to top executive recruiters. Job-seekers control who sees your resume -- and when. Fee-based.

ExecutivesOnly -- an executive employment network, working exclusively with executives with an earning potential of $70,000+. Job-seekers can also get assistance with resume preparation and some other services. Fee-based.

Executive Staffers -- a recruitment solutions firm that secures highly specialized, mid-to-senior level executives for a variety of professions and industries. Fee-based services range from job postings to personalized services. Job-seekers can search for jobs and post your resume for free.

Futurestep -- an executive recruiting service from Korn/Ferry International that focuses on filling mid-level positions and higher in professional services, information technology, human resources, accounting, sales and marketing, public relations, production, engineering, and planning across all industries. No costs to the job-seeker, and complete confidentiality is assured.

Graystone Partners, LLC -- an executive search firm serving more than 1,000 clients in identifying top general management, information technology, and financial executives for key management positions.

iGoHire.com -- for professionals and executives who are looking for new opportunities. You can enter your professional information into a confidential, encrypted database -- interested companies contact an alias, which then conveys a message to you. Free to job-seekers.

LeadersOnline -- where upper management professionals can maximize your job search by registering your profile and resume with this service of Heidrick & Struggles, one of the leading executive search firms. Job-seekers are contacted when job matches occur. Jobs in the $75K-$180K salary range. Free to job-seekers.

NETSHARE.com -- catering to the $100,000+ executive, this site offers several services ranging from direct access to thousands of executive employment opportunities offered by companies and recruiters nationwide to monitoring of new jobs that match your preferences and then emailing you. Fee-based.

6FigureJobs.com - Free Membership -- career networking for senior business, finance, and IT executives, this site provides experienced professionals the opportunity to confidentially seek and be considered for some of the most prestigious jobs in the U.S. -- with all positions with salaries of $100,000+. Free to job-seekers.

These are the best job resources for high-level executive and top management jobs, but you also might have success by searching in one of these categories: