IEEE Xplore
The definitive index for electrical engineering, computer science, and electronics — standards included.
Tier 2 AcademicSubscription
Research Database Directory
Every research database, reviewed.
ScienceDirect
Elsevier's full-text platform — the journals and books behind a huge slice of the world's research.
Tier 2 CorporateSubscription
Google Scholar
The free front door to scholarship — vast, frictionless, and quietly imprecise.
Tier 2 AcademicFree
PubMed
The free, authoritative front end to the world's biomedical literature.
Tier 2 Open AccessFree
Bloomberg Terminal
The financial industry's command line — real-time markets, news, and analytics, at a price to match.
Tier 2 CorporateSubscription
ProQuest
The aggregator behind the library catalogue — dissertations, news, and scholarly content under one subscription.
Tier 2 CorporateSubscription
SSRN
The early-stage repository where economics, finance, and law circulate first.
Tier 2 CorporateFree
Zotero
The free, open-source reference manager most researchers already have — and underuse.
Tier 2 ToolsFree
arXiv
The original preprint server — open science before the term existed.
Tier 2 Open AccessFree
bioRxiv / medRxiv
The preprint servers that moved the life and health sciences to publish-first.
Tier 2 Open AccessFree