Highly social activities are typically draining for introverts, and much of the job search process involves social activities. What can an introvert do? Pace yourself!
Specifically, try some of the following tips to manage your energy.
Remember that, while some activities are draining, others will help you recharge. Opportunities for reflection, for "digging deep" (e.g., doing research on a company or fine-tuning your LinkedIn profile), and one-on-one time with others typically serve that purpose for introverts.
If you schedule a mixture of activities - some that may drain your energy reserves and others that re-energize you - you'll be able to go the distance.
Additional advice from Wendy Gelberg to help introverts succeed with their networking, including (from the list on the right):
Wendy Gelberg is a Career Navigator at JVS CareerSolution in Boston and author of The Successful Introvert: How to Enhance Your Job Search and Advance Your Career. She is a certified career coach and resume writer whose expertise is in helping people who are uncomfortable "tooting their own horn." Wendy writes resumes, gives workshops, coaches individuals, and writes articles and blogs on all aspects of the job search process. Samples of her resumes and career advice appear in over 20 books. Wendy has been a career coach and resume writer for over 15 years. She has been an introvert her whole life. Contact Wendy at email@example.com.