There is a new exceptionally fine blog for the 1840-1940 era.
It is called Philaclassic
It is published from Brazil, and in Portuguese. (Google Translator makes short work of any language differences, though.)
Rubens has started with Aden, and at this time appears to be adding a country a day. As of Sunday, he is already up to Algeria.
And Rubens includes a list of stamp spaces in the Steiner (Deep Blue) album, with those that he has in his collection marked in red.
It does remind me a bit of my own blog which covers the same era, and in somewhat similar format. So naturally I like it. ;-)
And Rubens illustrates some nice stamps. I've been unable to find any stamps from La Aguera - and the "La Aguera" post shows a whole set. ;-)
And we have similar organizational choices- collecting with the Scott catalogue, and using the Steiner album (Deep Blue).
I will be following the blog with much anticipation.
Check it out!
Update (January 9,2013): Sadly, the Philaclassic blog appears to have gone private, with no public access. If the situation changes, I will update further.