;X-ray diffraction
* [https://web.archive.org/web/20071012172448/http://ndbserver.rutgers.edu/atlas/xray/structures/U/ud0017/ud0017.html NDB ID: UD0017 Database]
*[https://web.archive.org/web/20030803010825/http://ndbserver.rutgers.edu/atlas/xray/index.html X-ray Atlas -database]
* [https://web.archive.org/web/20040105073855/http://ndbserver.rutgers.edu/ftp/NDB/coordinates/na-biol/ PDB files of coordinates for nucleic acid structures from X-ray diffraction by NA (incl. DNA) crystals]
* [https://web.archive.org/web/20040105065152/http://ndbserver.rutgers.edu/ftp/NDB/structure-factors/ Structure factors downloadable files in CIF format]
;Neutron scattering
* ISIS neutron source: [https://web.archive.org/web/19981205225006/http://www.isis.rl.ac.uk/ ISIS pulsed neutron source:A world centre for science with neutrons & muons at Harwell, near Oxford, UK.]
;X-ray microscopy
;Electron microscopy
* [http://www.fidelitysystems.com/Unlinked_DNA.html DNA under electron microscope]
;NMR databases
* [https://web.archive.org/web/20030803005845/http://ndbserver.rutgers.edu/atlas/nmr/index.html NMR Atlas--database]
* [https://web.archive.org/web/20040105082208/http://ndbserver.rutgers.edu/ftp/NDB/coordinates/na-nmr-mmcif/ mmcif downloadable coordinate files of nucleic acids in solution from 2D-FT NMR data]
* [https://web.archive.org/web/20051215062524/http://ndbserver.rutgers.edu/ftp/NDB/nmr-restraints/ NMR constraints files for NAs in PDB format]
;Genomic and structural databases
* [http://www.cbs.dtu.dk/services/GenomeAtlas/ CBS Genome Atlas Database] &mdash; contains examples of base skews.
* [https://archive.today/20121129003619/http://tubic.tju.edu.cn/zcurve/ The Z curve database of genomes &mdash; a 3-dimensional visualization and analysis tool of genomes].
* [https://web.archive.org/web/20040301074323/http://ndbserver.rutgers.edu/ftp/NDB/models/ DNA and other nucleic acids' molecular models: Coordinate files of nucleic acids molecular structure models in PDB and CIF formats]
;Atomic force microscopy
*[https://web.archive.org/web/20080209123336/http://www.parkafm.com/New_html/resources/01general.php How SPM Works]
*[http://www.rhk-tech.com/results/showcase.php SPM image gallery: AFM STM SEM MFM NSOM, more]