Named Entity Extraction

A Survey of named entity recognition and classification
Evaluation of Named Entity Extraction Systems
NERD: A Framework for Unifying Named Entity Recognition and Disambiguation Extraction Tools
NERD: Evaluating Named Entity Recognition Tools in the Web of Data
NERD: an open source platform for extracting and disambiguating named entities in very diverse documents
NERD Ontology
Unsupervised Named-Entity Extraction from the Web: An Experimental Study

Stanford Named Entity Recognizer (Conditional Random Field) Whitepaper
GATE (General Architecture for Text Engineering) ANNIE (A Nearly-New Information Extraction) System
Illinois Named Entity Tagger
Balie: Multilingual Information Extraction from Text with Machine Learning and Natural Language Techniques
Mallet: Machine Learning

Apache Nutch (Web Crawler); Bixo (Web Mining); Behemoth (Hadoop Document Analysis); Apache OpenNLP (Natural Language Processing); Apache Stanbol (Semantic Content Management); Apache Tika (Metadata and text extraction); Apache UIMA (Unstructured Information Management Architecture); Apache Mahout (Machine Learning); Apache Avro (Data Serialization); Apache SOLR/Lucene; Apache Clerezza (OSGi RESTful Web framework, Triplestore DB); Apache Jena (Semantic Web: RDF, Triplestore DB, OWL); Fedora (Flexible Extensible Digital Object Repository Architecture), Apache Ambari

Maui (Topic Indexing); Weka (Data Mining); LingPipe; FreeLing; OpenCalais; DBpediaSpotlight

Alchemy API; Evri API; Web ARChive (WARC) format

HBase  Bigtable: A Distributed Storage System for Structured Data , Apache Phoenix