i'd still suggest the Occupational OUtlook link, since you said you are exploring different areas within librarianship - it's very detailed, and might help you explore different areas, different things librarians can do. it's a really awesome resource, if you haven't read through it before

. really a great overview of possibilities and so on.
and i still look through ALA job listings, etc. from time to time myself, even though i've been a librarian for 8 years, working in a library for almost 10, and hope to stay at my current job a long time! i just feel like it helps me stay up to speed with what's going on in the field.
btw, i taught introductory courses for an online mls program when my kids were really small, and enjoyed that and felt that i was good at it. but i really missed reference work and found teaching on online to be a sort of lonely experience. even though i'd kept current in the field after my kids were born, had years of good and diverse library experience (and worked for a major book retailer before that in a job with heavy customer service responsibilities), and excellent references from very well-placed librarians, it took me two years to find something where i live. (in the interim, i also volunteered at a birth center's library - helped them weed and classify their books, and made suggestions for future purchase.) there were just hardly any openings, let alone part-time openings, and i had childcare constraints that made some jobs impossible. just when i was seriously exploring going back to school to be a nurse (i'd done lots of research, and even attended open houses), i found my current position. i am so grateful for it - i love what i do, but i was increasingly afraid i wouldn't have the opportunity to do it again.
hope this helps, and if i repeat stuff you already know, i apologize

- just trying to help. and i don't mean to be discouraging - your area may have more opportunities than mine did and does, and i do love what i do.
good luck!!!