Blogger Targeting: 

Traffic via Alexa Score

Page Rank (1+, 3+, 5+, 6+)

Quality Score (given by other advertisers)

Geographic locations (by Country)

Blogger domains

Blog Topics: 

Arts/Literature

Business/Entrepreneurism

Celebrity News/Gossip

Charity/Community

Computers/Software

Cooking/Cuisine

Education/Personal Growth

Fashion/Style/Trends

General Female Topics

General Business

General Entertainment

General Male Topics

General Living

General Technology

Health/Fitness/Beauty

Hobbies/Collecting

Home Improvement/Construction

Household/Parenting

Internet/Web Design/Blogging

Music/Movies/Video Games/TV

Photography/Videography

Politics/Society/Government

Real Estate/Investing/Finance

Religion/Spirituality

Sales/Marketing

Shopping/Product Reviews

Sports/Outdoor Recreation

Technology/Gadgets

Travel/Destinations