As for the 1L job search it goes something like this: Everyoe applies for the same jobs, so you're competing with a bunch of really smart talented people for the limited jobs their are. Also, even if you don't want to get paid and want to do public interest, don't expect that it will be easy to get a job. One PI employer told me she has 200 applicants for 6 unpaid internships.
IMO I have a pretty good resume and some fairly impressive work experience, but it is still rough out there. The only lesson I have learned from this whole demoralizing experience is that I should not have waited "all the way" until January before sending out resumes for the summer.