If you have websites about technology, software or operating systems and able to write articles, you can write related guest posts on my blog with backlinks to your website. My blog (www.windows7.cc) is 4 years old, PR4 and has thousands of unique visitors per day. It will be a good opportunity to have a link from my blog to yours. If you want to write guest posts, please register yourself to the blog and start writing. Please note that i will ban users which make spam. Please write unique posts. I will accept them and you will get a PR4 backlink.