I have 8 moths old blog. Recently my blog hack someone and added some hidden links and and text. As a result of that Google drop all my keywords ranking. Now less than 50 persons come from Google, others come form referring sites, such as StumbleUpon, Yahoo answer etc. Now i removing those issues. I'm not a expert for this field, so please tell me Its better request a reconsideration to Google webmaster or start new blog. I have own domain name and its expire in next year august previously i used blogger sub domain and i have PR3 for this new domain and more than 1000 backlinks. I have another problem if Google ban or drop keywords positions Google notify that site admins via Google webmastertool?