There are a lot of half-baked theories about “blogging and pinging” getting you better search engine rankings. I have one word for them – Search engine spam (Ok so that was three words, but spam is spam!) 
It’s not that pinging doesn’t work, but pinging is only a way of letting blog services know that your blog has been updated.
Most blogging software can be configured to automatically ping a number of blog services every time you update your blog, so there’s really no need to do this manually.
All you have to do to get more blog traffic – and better rankings – is post (real posts, not spam) more frequently.
My friend Tinu AbayomiPaul agrees and covers this superbly in her article Can A Ping Really Help Your Blog Get Top Search Engine Rankings?
The most important points Tinu covers in her article:
- Pinging sites like Yahoo and Syndic8 every half-hour for several days or weeks, to notify of updates when they haven't been made, does nothing but clog up the system. It's called spam-pinging and it has been around since 2002.

- Constantly blogging and pinging will not only NOT help your search engine rankings, it could even get you banned from sites like Yahoo.
- Frequency of updates does have something to do with rankings. But it is not what guarantees that your blog gets spidered - if your blog isn't set up to take advantage of the visit from the search engine spiders, it won’t get listed.
- Spam-pinging isn't going to do get you better rankings – there are other ethical, faster, simpler ways to do this.
- Your best bet is to continue to achieve your natural search engine position through blogging, basic search engine optimization, and a common sense approach to frequent updates.
- The ethical way to get into search engines and achieve high rankings with a blog, depends more on timing, supply and demand – not on volume.
I expect these dumb theories, and the spammy software created to support them - will die a natural death once people start realising they don’t work. 
# posted by Priya Shah @ 1:18 AM