Below is a list a resources that students might find useful for their research (and teaching). I've pillaged heavily (and, in some instances, copied) from Dr. Peggy Renwick's thorough list of resources. 

Tools for data analysis

• UGA Statistical Consulting Center
• The R Project
• RStudio - If you use R, you should use RStudio
• Rbrul - An R implementation of GoldVarb-style regression analysis by Daniel Ezra Johnson
• Language Variation Suite - tools for quantitative data analysis
• Transcriber - a tool for segmenting, labeling and transcribing speech
• ELAN (transcriptions/annotations) - tool for transcribing and annotating linguistic data

Corpora and Corpus tools

• Corpus del Español - Spanish corpus run out of BYU
• Corpus do Português - Portuguese corpus run out BYU
• PRESEEA - A collection of sociolinguistic data from around the Spanish-speaking world
• Real Academia Española - different synchronic and diachronic corpora
• COW - High Quality Web Corpora
• LANCSBox - software package for the analysis of language data and corpora
• Center for English Corpus Linguistics (Louvain) - A collection of several useful corpus resources

Other Tools

• LaTeX for Linguists
• RMarkdown - A markup language useful for creating documents and presentations (and other delights)

Resources for Graduate Students

• "Choosing a Dissertation Topic" (Post from Tomorrow's Professor)
• "On citing well", in Nature Chemical Biology
• PhD Comics
• Surviving Linguistics: A Guide for Graduate Students (Monica Macaulay)
• Writing your dissertation in 15 minutes a day (Joan Bolker)

Stay connected / Get involved

• Language Log - A great (and in fact award-winning) blog for linguists
• Lingthusiasm - A podcast that's enthusiastic about linguistics by Gretchen McCulloch and Lauren Gawne.
• Language on the Move - a peer-reviewed sociolinguistics research site devoted to multilingualism, language learning and intercultural communication in the contexts of globalization and migration
• Athens-Oconee CASA - Court Appointed Special Advocates
• Athens for Everyone

Runasimimanta

• Quechua at Penn - Quechua and Andean Culture (University of Pennsylvania)

• Quechua @ NYU - Information about Quechua offerings at NYU

• Kichwa Hatari - a weekly radio program, the first in the indigenous Kichwa language in the U.S, aimed at reaching the Quechua/Kichwa population in the United States, particularly in New York

• Academia Mayor de la Lengua Quechua - Information about Quechua language and culture

• Quechua at UIUC - Information about the Quechua offerings at the University of Illinois Urbana-Champaign

• Quechua - A somewhat dated but very useful collection of resources for folks interested in Quechua/Quichua/Runasimi