All *.loc.gov web sites will be "closed," including the two you quoted.

The Internet Archive's Way Back Machine is probably your best bet for these types of things:

http://web.archive.org/web/*/http://www.loc.gov/marc/
http://web.archive.org/web/*/http://www.loc.gov/standards/sourcelist/index.html

Yours,
Kevin

--
Kevin Ford
Network Development and MARC Standards Office
Library of Congress
Washington, DC


> -----Original Message-----
> From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of
> Becky Yoose
> Sent: Monday, September 30, 2013 4:32 PM
> To: [log in to unmask]
> Subject: Re: [CODE4LIB] [CODE4LIB] HEADS UP - Government shutdown will
> mean *.loc.gov is going offline October 1
> 
> FYI - this also means that there's a very good chance that the MARC
> standards site [1] and the Source Codes site [2] will be down as well.
> I
> don't know if there are any mirror sites out there for these pages.
> 
> [1] http://www.loc.gov/marc/
> [2] http://www.loc.gov/standards/sourcelist/index.html
> 
> Thanks,
> Becky, about to be (forcefully) departed with her standards
> documentation
> 
> 
> On Mon, Sep 30, 2013 at 11:39 AM, Jodi Schneider
> <[log in to unmask]>wrote:
> 
> > Interesting -- thanks, Birkin -- and tell us what you think when you
> get it
> > implemented!
> >
> > :) -Jodi
> >
> >
> > On Mon, Sep 30, 2013 at 5:19 PM, Birkin Diana <[log in to unmask]
> > >wrote:
> >
> > > > ...you'd want to create a caching service...
> > >
> > >
> > > One solution for a relevant particular problem (not full-blown
> > linked-data
> > > caching):
> > >
> > > http://en.wikipedia.org/wiki/XML_Catalog
> > >
> > > excerpt: "However, if they are absolute URLs, they only work when
> your
> > > network can reach them. Relying on remote resources makes XML
> processing
> > > susceptible to both planned and unplanned network downtime."
> > >
> > > We'd heard about this a while ago, but, Jodi, you and David Riordan
> and
> > > Congress have caused a temporary retreat from normal sprint-work
> here at
> > > Brown today to investigate implementing this!  :/
> > >
> > > The particular problem that would affect us: if your processing
> tool
> > > checks, say, an loc.gov mods namespace url, that processing will
> fail if
> > > the loc.gov url isn't available, unless you've implemented xml
> catalog,
> > > which is a formal way to locally resolve such external references.
> > >
> > > -b
> > > ---
> > > Birkin James Diana
> > > Programmer, Digital Technologies
> > > Brown University Library
> > > [log in to unmask]
> > >
> > >
> > > On Sep 30, 2013, at 7:15 AM, Uldis Bojars <[log in to unmask]>
> wrote:
> > >
> > > > What are best practices for preventing problems in cases like
> this when
> > > an
> > > > important Linked Data service may go offline?
> > > >
> > > > --- originally this was a reply to Jodi which she suggested to
> post on
> > > the
> > > > list too ---
> > > >
> > > > A safe [pessimistic?] approach would be to say "we don't trust
> > > [reliability
> > > > of] linked data on the Web as services can and will go down" and
> to
> > cache
> > > > everything.
> > > >
> > > > In that case you'd want to create a caching service that would
> keep
> > > updated
> > > > copies of all important Linked Data sources and a fall-back
> strategy
> > for
> > > > switching to this caching service when needed. Like archive.org
> for
> > > Linked
> > > > Data.
> > > >
> > > > Some semantic web search engines might already have subsets of
> Linked
> > > Data
> > > > web cached, but not sure how much they cover (e.g., if they have
> all of
> > > LoC
> > > > data, up-to-date).
> > > >
> > > > If one were to create such a service how to best update it,
> considering
> > > > you'd be requesting *all* Linked Data URIs from each source? An
> > efficient
> > > > approach would be to regularly load RDF dumps for every major
> source if
> > > > available (e.g., LoC says - here's a full dump of all our RDF
> data ...
> > > and
> > > > a .torrent too).
> > > >
> > > > What do you think?
> > > >
> > > > Uldis
> > > >
> > > >
> > > > On 29 September 2013 12:33, Jodi Schneider <[log in to unmask]>
> > wrote:
> > > >
> > > >> Any best practices for caching authorities/vocabs to suggest for
> this
> > > >> thread on the Code4Lib list?
> > > >>
> > > >> Linked Data authorities & vocabularies at Library of Congress (
> > > id.loc.gov)
> > > >> are going to be affected by the website shutdown -- because of
> lack of
> > > >> government funds.
> > > >>
> > > >> -Jodi
> > >
> >