In your own opinion will it make a difference whether the anchor text for a keyword has a capital letter at the beginning of each word or lower case?
it does not matter whether there is keyword in lower case, upper case or title case, b'coz case sensitivity does not affect SERPs.
what a stupid thing!!! Google do no differentiate the results on the basis of case. but i do display different results for singular and plurals
Keywords are not Case-Sensitive and so makes no difference if written as Keyword, keYWOrd, keyword or KeyWorD.
As contentboss said, it 'can' make a difference with some search engines. Most search engine ranking algorithms are case insensitive. They typically normalize the link text to lower case and replace all punctuation characters with a space before considering them in the algo. However, most search engines are built on platforms that ARE case sensitive. So one part of the system may be case sensitive while other parts of the same search engine might be case insensitive. It depends on their developers. I could see search engines (especially Google) one day being case sensitive on purpose for certain ambiguous keywords... They could use the case of certain keywords as a signal to determine the context in which it is used... For example, if a word can be used both as a Proper Noun (person's name) and a regular noun to mean something totally different, Google might want to show different results depending on the case. For example, "John" is a person's name... "john" can also be used to mean a toilet in the US. One day Google's ranking algorithm might be sophisticated enough to attempt to discern the difference not only when used in the search phrase, but also when used in the link text. Should such time come, they might return results where the link text of most of the inbound links and on page occurences were "john" when you search for "john" (lower case) versus those pages where "John" was used as the link text. But I doubt they are there yet... Although I'd be willing to bet there are a few PhDs there working away at stuff like this. They already do stuff similar to this by looking at search phrases to determine context of ambiguous words and return the best results for that context. The best way to tell is to simply go to the search engine in question and search for the word in lowercase and then search again in mixed case or uppercase. Do you get the same results? If so then it is likely case insensitive. If you get drastically different results then it likely IS case sensitive. But these tend to be the lesser known, less sophistocated engines.
There is no effect in search results But making the first letter capital will make it professional look.