These go into the wish list bucket!
(a) I would love to see some advanced search filters available to freelancers seeking jobs, much more like what the search filters look like on the Client side for "find freelancers". Ye olde "turn about is fair play" -- clients can filter on many specific criteria regarding freelancers; seems freelancers should be able to do the same regarding clients and jobs.
I imagine filters such as:
(b) For both freelancers and clients, it would be great to be able to save a filter set and even better to have it applied by default to our searches.
Yup, give us the moon and we ask for the galaxy.