Below is the best tutorials I found so far to learn Revit Architecture (it goes from 1-17), here is the youtube channel.
Also to link Grasshopper with BIM tools such as Revit, Vasari or Digital Project, have a look at the Autodesk Webinar series on that topic. Geometry Gym uses the IFC OpenBIM data model to export families from Grasshopper to Revit. This allows to have items such as walls or slabs with materials…etc… imported as such on Revit or Digital Project or any BIM software. The other plugin focus on “Adaptive Components” from Grasshopper to Revit. Chameleon allows to bring back models to Grasshopper from Revit which is useful when doing simulations.
Jon Mirtschin’s Geometry Gym IFC importer:
Hiroshi Jacobs’ Chameleon:
Tim Meador’s Hummingbird:
Nathan Miller’s OpenNurbs Import:
Autodesk’s products are free for students, download them here: http://students.autodesk.com/