This study investigated an e-blog-based English for Specific Purposes (ESP) program's effectiveness in developing functional writing skills and reducing writing apprehension among recent graduates of the Faculty of Computers & Information (FCI) at Assiut University. Graduates in technological fields often face significant challenges in professional writing, a critical competency for career success. Employing a one-group pre-test/post-test quasi-experimental design, the study first conducted a needs analysis, which revealed participants' low proficiency in functional writing and high levels of writing apprehension. A 12-week ESP program was subsequently implemented, focusing on authentic, business-related writing tasks (reports, emails, and business letters) facilitated through an e-blogging platform. Post-intervention results revealed statistically significant improvements in participants' functional writing skills and a concurrent significant reduction in writing apprehension. A strong negative correlation was found between the gains in writing skills and the reduction in apprehension. These findings suggest that e-blogs offer a valuable and effective platform for ESP instruction, enabling authentic practice, facilitating constructive feedback, and building learner confidence in a supportive, collaborative online environment. The study discusses implications for ESP curriculum design and the integration of technology in language education for technology professionals.