Subcategories:
Passport and Travel Visa Services 
Provides one-stop solution to all Russian travel needs: from passports to Visas. Has been providing responsive Visa expediting services to Russia for over 7 years.
http://www.russianvisaguide.com/
Overnight and expedited service for passports and travel visas.
http://www.urgentpassportandvisa.com/
3. VisaHQ.com
Passport and visa services agency located on the Embassy row in Washington, D.C. One-time (for the lifetime) online application allows a person to apply for a visa to one or several countries at once, in under 2 minutes. Available for citizens of any country.
http://www.visahq.com/
Specialists in issuing and processing Australian travel visas. Includes information on working holidays, travel insurance, and tourist visas.
http://www.visas-australia.com/