And when you are done looking at this site for the Scots input on football world-wide, here are two more.
For those who literally want to trace on the ground the local development of Scots and Scottish football in our own and other countries there is the newly available and ever-expanding site of:
The Scots Football Historians' Group
And on Scottish sports history in general but inevitably including fitba', see Andy Mitchell's inestimable:
Mexico
Football came to Mexico not from Spain but by ship and rail in the feet of British "gentlemen", Cornish miners and Scottish factory workers. The gentlemen were firstly merchants and British government officials in Mexico City. And they were followed by railways engineers and from all four old countries the staff required to carry out business, amongst whom was a certain James McNabb, the new country's first footballing forward of note. The miners were transferring their skills from Cornish tin to the ores in the mountains around Pachuca to the north-west of the capital. The Scots were bringing theirs from the jute mills of Dundee to the Santa Gertrudis mill to the south-east in Orizaba at the foot of Mexico's highest peak, the Citlaltépetl volcano. The factory is still there, a ruin, yet, whilst the Scots that made up ten of the eleven in the works team are long-gone, faded into obscurity, for a footballing season in 1903 under the guidance of one Duncan Macomish they won the first ever Mexican football league.