So you have prepared your resumes. Congratulation!
Now the only thing left is forwarding these resumes. But where to start? one can start mailing their resume in various ways. Some of them are listed below:

1. You always wanted to work for that XYZ company. Now is your change. Just check it's web page. Most companies have a section called "career" or "recruitment".
2. Second best option is to post your resume on any of the free job related sites. They usually works. They worked for me. And the job offers are also from very reputed companies. If can afford then join some of the paid job-site.
3. Use your friends. Tell them you are looking for a job. They would be more then happy to refer you. Many companies run referral programs where the current employees' can refer a friend. Its a win-win situation for both parties, you gets a job, and he gets some extra bucks ;).
4. Read newspapers and keep an eye for openings.
5. Keep in touch with your friends working in your field. You never know who might tipoff you about vacancies in near future.

That sums up almost everything. Let me know if I left anything important.