Today I found another very good resource, The Goodspeed Manuscript Collection, hosted by the Chicago University Library. This collection includes many New Testament MSS and the plan is to make them all electronically available. Very user friendly system, and high quality of the images.
There are already two complete MSS online, Greg. Aland 2400, and 2427. I examined the Epistle of Jude in MS 2400, and was actually helped by these images which are clearer than the photographic material I had used earlier for my transcription of this MS.
There is also a catalogue (without sample plates) available with basic bibliographic information of the MSS. This catalogue is from an exhibition in 1973 and exists also in print (probably with plates) and can be ordered from the library.