TOXLINE and DART have been migrated into PubMed and can be searched by using the subsets created within PubMed to filter them.
TOXLINE Literature: Search using this syntax: "tox[subset] AND" followed by the substance of interest.
Developmental and Reproductive Toxicology (DART) Literature: Search using this syntax: "dart[subset] AND" followed by the substance of interest.
The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. "The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format."