Focus of this category is on the region that straddles the border between the United States and Mexico. Some websites in this category specifically focus on the area that lies within 100 miles of the border, but others do not use such a rigid definition.
Links to categories for US and Mexican states in the border region.
Please find the most specific region. Websites are placed according to physical location; not according to area served. The Mexican states are listed in the upper level and the US states are listed in the lower level.