you might really need 'Advanced Directory' .....
This place compares
advantages and disadvantages of Advanced Directory with local database
based link-indexing (directory) scripts and whether Advanced Directory
is right for your purposes.
There are many good
reasons for using ODP (Open Directory) data as your directory solution.
Unless you have a very strong financial support or revenue stream
you would probably want to think over the following 8 comparisons:
Directory does not create any fixed local database. It maintains
a local cache instead, where category details, resources are stored
temporarily. Local cache is refreshed regularly to ensure that your
Advanced Directory always generates valid and up-to-date listings.
This is why you do not need a super server with tens of Gigabytes
of disk space just to store your directory database.
will need very large amount of disk space just to store your directory
database (assuming that you expect your local Database based directory
to hold a respectable number of resources; not just a few thousands).
You may additionally need more big storage devices (hard disks, tape
storage etc.) for backing-up and other regular database maintenance
need to deal with regular maintenance tasks. Data fetching, local
caching, data refreshing and other procedural tasks are automatically
handled by the script.
You do not even need to have any programming knowledge. Some elementary
HTML knowledge will be more than enough.
expert knowledge on your Database system administration (MS SQL, Oracle,
MySQL, mSQL or other Database language) to maintain the database.
Involves regular tasks like: adding new entries, creating new categories,
checking for invalid URLs, checking content suitability, database
rebuilding, Creating Indexes, protection against spamming by link-submitting
spiders (mass submissions), backing-up etc. to keep your database
and directory data up-to-date.
Directory generates full directory search results almost instantly
even on a virtual server. In most cases faster than most big search
engines. It also supports full advanced Boolean syntax (+, -,
"", AND, OR, NOT etc.).
Unless you have
a super strong server system (multi-processor or cluster) with several
Gigabytes of RAM (Memory, not disk space) and you will probably
have a VERY SLOW search. Even then, your searching may
never offer TRUELY professional searching unless the entire
application was designed accordingly.
1 Gigabyte (GB)=1024 Megabytes (MB).
Directory always produces current, proven and valid data from original
ODP which is regularly maintained by real human beings.
Note, that you are legally allowed to use ODP data on your site.
You can read this Free
use license for the Open Directory data.
will need to deal with all database maintenance tasks regularly. Checking
for invalid links/URLs, deleting them, rebuilding the huge database
are tedious, time consuming operations and often incur additional
regular expenses (unless you have your own dedicated personnel qualified
need to backup a huge database. In case of any server crash, you
can restore your entire 'Advanced Directory' in less than 5 minutes.
Just reinstall and your entire directory is up and running again.
database backup is probably a must. Any crash or data restoration
fail can easily cause service interruption for days. (Remember
the huge size of your database and overhead maintenance cost)
Directory adds a huge directory to your site/portal instantly. Currently
ODP contains more than 2 million resources; manually checked by real human beings
(editors). The number is growing every week, so is your own directory
you build your local database from scratch, it may take months or
even years to grow up to the size of ODP. Even if you employ any spidering
technology to create a local index of respectable size you would still
be facing the above mentioned challenges (see 1-5).
modifications, updates, upgrades are quick, easy and much cheaper.
Usually there is NO need to interrupt the service. New features can
be added any time without any trouble at all. Add-ons, extensions
come as ready to go.
your directory is totally dependent on an already built huge database
structure; future changes, major modifications or upgrades are NOT likely
to be as easy.
web is growing too fast. More and more new features are being introduced.
Hence you are not burdened with any costly, time-consuming and regular
maintenance task, you can easily focus on issues like revenue increase,
further improvements, new alliances, new services etc.
Advanced Directory gives you full control and flexibility with your
directory content, output format, updates, upgrades. You can add new
features (as available) in a matter of minutes.
a directory index is always tempting regardless of all the hard work
involved. However, given the fast changing nature of the web it may
not prove to be a blessing unless you really have a very strong revenue
stream to keep up with this fast changing web culture. As money matters
are becoming more and more important; today's web businesses are keen
to pay more attention on issues like: revenue increase, service improvements etc.
You may also want to consider the fact that many major search engines
and increasing number of big, new and promising portals are using
there may be situations where a local database based directory would be
more appropriate for your purposes.
Otherwise, Advanced Directory is probably the only professional
solution available to serious site-builders. Some of todays finest
and busiest portals are successfully using our 'Advanced Directory' (standard
or Pro or Customized solutions) to serve their visitors.