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- Full-text indexing and presentation
- Tool-support for mass-processing
- Corpus extraction
- Derived formats
- analysis + visualisation
- index-server API
- harvesting API
- Discovery API + Services
- WARC standard + usage
- Deduplication/revisits
- Standards and tools for metadata + provenance
- Integration of web- and nonweb- collections
- more automation of QA (crawl.log analyse)