Yes BlazeDS uses the binary protocols AMF 3. AMF3 compresses the data at around 1/6 of its original size. But BlazeDS is meant to other things, however you could take advantage of AMF3 if you use ColdFusion as your backend server, PHP and ZendAMF, or .NET and WebOrb.
Here is list of some useful links for you:
I think going thorugh sample applications made in Flex is good way to look inside of flex, choice of BlazeDS is right I think so as it is lightweight & freeware. & If you are going with Flex 3.0 then definitely you will get benefit of AdvancedDatagrid & OLAP datagrid.
they were very helpful links. I hv been going through Adobe TV as well at the same time, which has some very good explanations behind the use of technology. I already have two sample prototypes to build using flex, which could give a good headstart understanding flex.
Hi, if u r really getting help from those link please mark it as such, so others will follow the same.
Have a nice time!