Here are some helpful linguistic resources, along with my prioritized list of tools for analysis:

Ethnologue (Catalog of the world's langauges)

WALS (World Atlas of Language Strucures)

FLEx (Fieldworks Language Explorer for extensive linguistic analysis and output)

XLingPaper (Produce linguistic documents in XML for various outputs: pdf, MSWord, LibreOffice, Web, etc) 

Phonology Assistant (Analyze phonological data in FLEx)

WeSay (Indigenous Collaborative Dictionary Builder)

LingTree (Design linguistic trees and make them into images)

Other (A variety of other smaller linguistic tools)