Dear Sir/ Ma'am,
I am very much interested in your letter writing project. I have worked as a copywriter for banner ads, landing pages and pop-ads for various websites. You may view my portfolio and resume online at http://letterbarn.blogspot.com/
I am available for 6-8 hours of work daily and on a per project basis for writing assignments like interviews and research.
If you have questions, I may be reached at 555-20556 or through skype.
I look forward to your response.
Thank you very much,