Yes, it's possible. First of all, you need a domain name. Take... sinopenn.com for example. Blogger software, blogger blog, google everything else, except for the posts. But it's not blocked in China.
How do you do this? First of all, you need a domain name. Domains cost no more than $10 from a place like Godaddy.com or around 200 RMB through a little known outfit called TeraScape.NETworks.