The notebook.lausd.net website, any URL starting with http://notebook.lausd.net, has been decommissioned. If you reached this page from following an old link to notebook.lausd.net, the links below might help you find the data you are looking for:
For LAUSD's new eLibrary documents (bulletins, memorandums, reference guides, etc.), please visit https://my.lausd.net . If you require assistance using the new eLibrary please visit https://achieve.lausd.net/elibinfo
For LAUSD web pages and other related content please visit the district's main website http://www.lausd.net. From this website you can perform a search for the content you are looking for.