American Institute of Biological Sciences
Covers both specific job listings and the broader ideas of different careers that biology students might pursue. Covers job prospects, salaries, education, etc.
Biology Degrees and Career Resources
Covers the entire process of deciding on a career, education, types of jobs, prospects, earnings, related jobs. Lots of useful information.
Published every year by the US Dept. of Labor. Search for the specific aspect of biology you want--botanist, biotechnician, etc. Gives job description, education needed, salary ranges, prospects, and links for professional organizations.
Indeed.com - Biology Jobs in Houston
There are many job websites, of course. This is an example that shows current biology-related jobs and salaries available in Houston.
A job search and career exploration resource with more than 1,100 occupations, sample resumes and cover letters, current job and internship postings, and guidance on preparing for and getting a job.
Gale OneFile: Vocations and Careers
Research a vocation, find an appropriate institution of learning, and get assistance on job searches and maintaining a career.