syngirl said:
I wrote a long write-up for tangobob in his blog. I've intended to clean it up and post it here, but haven't (yet).
Short(er) version:
1)
http://www.comoviago.com is excellent, except for the somewhat clunky input interface and the low-quality map.
2)
http://maps.google.com gives the most excellent maps and ability to scroll around quickly, but no colectivo routes (or subte or tren).
3) If you click the right spots in
http://mapa.buenosaires.gov.ar/sig/index.phtml you can get it to show you all of the colectivos that go down a particular street. Unfortunately, the site can be slow, and not always do what you want. It is really hard to scroll around, for example. (The action is easy; the results are just really slow or never happen.)
4) If you know a colectivo number,
http://www.xcolectivo.com.ar/colectivo/ lists every street that a particular route takes. Like found in the back of Guia T, if I recall correctly. It is nice because you can search (via your browser) for the street names of interest, particularly when there are multiple routes for the same line (29 A, B, C, ...)
For a long time, I used 2, 3, and 4 together to figure out how to get from A to B (and back). Now, I use 1 to get the bus(es) and then 2 (and 4) to understand what it happening.
My Holy "BA Colectivo" Grail would have the information of comoviajo on a Google map. I would also love to be able to ask to just see the route of a particular colectivo on Google maps as well (combining 2 and 4 above). One that shows the exact location of each stop (parada) would be the ultimate!
Guia T doesn't do it for me (or other newcomers I suppose). We want to know *exactly* where a colectivo is going, not just some 10 square block grid that it passes through at some point (without having to flip back and forth and try to read the tiny print of all of the street names). Of course, Guia T is good to have in your back pocket if you don't have your computer handy... (Or to use as a threat! See the end of paragraph 3 of
http://www.micheleandtom.com/2009/06/tuesday-adventure-at-the-hospital/)