diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -26,4 +26,5 @@
 ## References
 
 [1] GraphChallenge https://graphchallenge.mit.edu/data-sets
-[2] LINQS http://www.cs.umd.edu/~sen/lbc-proj/LBC.html
+
+[2] LINQS https://linqs.soe.ucsc.edu/data
diff --git a/algebraic-graphs-io.cabal b/algebraic-graphs-io.cabal
--- a/algebraic-graphs-io.cabal
+++ b/algebraic-graphs-io.cabal
@@ -1,14 +1,14 @@
 name:                algebraic-graphs-io
-version:             0.1.5.0
-synopsis:            I/O utilities for algebraic-graphs
-description:         I/O utilities for algebraic-graphs. See README for details
+version:             0.1.5.1
+synopsis:            I/O utilities and datasets for algebraic-graphs
+description:         I/O utilities and datasets for algebraic-graphs. See README for details
 homepage:            https://github.com/ocramz/algebraic-graphs-io
 license:             BSD3
 license-file:        LICENSE
 author:              Marco Zocca
 maintainer:          ocramz
 copyright:           2020-2021 ocramz
-category:            Graphs, Parsing
+category:            Graphs, Parsing, Data Mining
 build-type:          Simple
 extra-source-files:  README.md
                      CHANGELOG.md
diff --git a/src/Algebra/Graph/IO/Datasets/LINQS.hs b/src/Algebra/Graph/IO/Datasets/LINQS.hs
--- a/src/Algebra/Graph/IO/Datasets/LINQS.hs
+++ b/src/Algebra/Graph/IO/Datasets/LINQS.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE OverloadedStrings #-}
--- | Link-based datasets from http://www.cs.umd.edu/~sen/lbc-proj/LBC.html
+-- | Link-based datasets from https://linqs.soe.ucsc.edu/data
 {-# options_ghc -Wno-unused-imports -Wno-unused-top-binds #-}
 module Algebra.Graph.IO.Datasets.LINQS where
 
diff --git a/src/Algebra/Graph/IO/Datasets/LINQS/Citeseer.hs b/src/Algebra/Graph/IO/Datasets/LINQS/Citeseer.hs
--- a/src/Algebra/Graph/IO/Datasets/LINQS/Citeseer.hs
+++ b/src/Algebra/Graph/IO/Datasets/LINQS/Citeseer.hs
@@ -2,6 +2,11 @@
 {-# LANGUAGE DeriveGeneric #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# options_ghc -Wno-unused-imports -Wno-unused-top-binds #-}
+-- | Citeseer document classification dataset, from :
+--
+-- Qing Lu, and Lise Getoor. "Link-based classification." ICML, 2003.
+--
+-- https://linqs.soe.ucsc.edu/data
 module Algebra.Graph.IO.Datasets.LINQS.Citeseer (citeseerGraph, stash, ContentRow(..), DocClass(..)) where
 
 import Control.Applicative (Alternative(..))